---
product_id: 9484077
title: "Vornado Evap40 Evaporative Humidifier, 4-Gal Capacity, 1,000 Sq Ft Coverage"
brand: "vornado"
price: "S$596"
currency: SGD
in_stock: true
reviews_count: 13
category: "Vornado"
url: https://www.desertcart.sg/products/9484077-vornado-evap40-evaporative-humidifier-4-gal-capacity-1-000-sq
store_origin: SG
region: Singapore
---

# 4-gallon dual tank capacity 3-speed adjustable humidistat 1000 sq ft coverage Vornado Evap40 Evaporative Humidifier, 4-Gal Capacity, 1,000 Sq Ft Coverage

**Brand:** vornado
**Price:** S$596
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your air game—comfort that’s seen, felt, and envied.

## Quick Answers

- **What is this?** Vornado Evap40 Evaporative Humidifier, 4-Gal Capacity, 1,000 Sq Ft Coverage by vornado
- **How much does it cost?** S$596 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/9484077-vornado-evap40-evaporative-humidifier-4-gal-capacity-1-000-sq)

## Best For

- vornado enthusiasts

## Why This Product

- Trusted vornado brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hassle-Free Maintenance:** Dual removable, leak-proof tanks and easy-clean design keep your busy lifestyle in mind—less time refilling, more time living.
- • **Massive 4-Gallon Capacity:** Extended runtime means fewer refills—stay effortlessly comfortable all day and night in large spaces up to 1,000 sq ft.
- • **Precision Humidity Control:** Built-in adjustable humidistat with 3 speeds lets you customize your ideal moisture level for optimal air quality and comfort.
- • **Whole-Room Comfort, No Mist:** Vornado’s signature Vortex Action circulates humidified air evenly without visible mist, perfect for stylish, dry-air relief.
- • **Trusted Durability & Support:** Backed by a 5-year warranty and designed in the USA, this powerhouse humidifier is built to exceed your expectations.

## Overview

The Vornado Evap40 is a powerful evaporative humidifier designed for large rooms up to 1,000 sq ft. Featuring a 4-gallon dual tank system, it delivers up to 4 gallons of moisture daily with Vornado’s unique Vortex Action for uniform, mist-free humidification. Its built-in adjustable humidistat and 3-speed settings provide precise control, while the easy-to-clean, leak-proof tanks ensure low maintenance. Backed by a 5-year warranty and designed for U.S. voltage, it’s the perfect blend of performance and reliability for modern homes.

## Description

Product Description The Evap40 Whole Room Evaporative Vortex Humidifier creates a comfortable, perfectly humidified living space quickly and quietly. Vornado's deep pitch blades pull large volumes of harsh, dry air through two humidifying filters, and then, using Vornado's signature Vortex Action, circulates the humidified air throughout the room, providing complete and uniform humidification in spaces up to 1,000 sq. ft. The Evap40 delivers automatic humidity control with a built-in humidistat. An easy-to-use control panel allows you to choose your desired humidity level and fan speed (low, medium, or high). Its extra-large 4 gallon capacity provides up to a 4 gallon water output when operated continuously on high, allowing for long, uninterrupted operation and fewer refills. Backed by Vornado's 5 year limited warranty. Do not use gasoline, thinners, solvents or other chemicals for cleaning. Humidifier components are not dishwasher safe. Do not submerge humidifier tops in water. Power: 43 Watts. From the Manufacturer IMPORTANT INTERNATIONAL DISCLAIMER: This item is built to meet U.S. voltage requirements and may not function properly when used in conjunction with external devices that alter or convert voltage or frequency of electricity. Improper use or shipping the product outside the U.S. will void all warranties.

Review: Easy to Use and Clean - Living in central Indiana, I have traditionally used mist humidifiers or warm air humidifiers like the simple Vicks (still made in Mexico and not China unless I am mistaken). Mist humidifiers are just a pain to clean and put too many minerals in the air that are attached to the atomized air droplets and by Spring, it (layers of deposited minerals) comes off my furniture when cleaning. So you probably breathe this in. If using distilled water, not an issue and if your tap water is clean, also not an issue....BUT, if you have questionable water or well water, extremely hard, think of your lungs/throat and if you have infants in the house, which I do). So I chose this humidifier for several reasons, like Made in USA and alleged ease of use. Well, it is definitely easy to use. I love the side tanks and how you just place them and gently flip up...no splashing, no overspill, just easy. Add a few drops of antibacterial solution and slap em in. I do wish it had a digital display so I could measure the exact humidity and have an auto-turnoff. However, I use one upstairs (smaller 1 gallon Tornado version...wish I had just bought 2 of the larger units, but that one does have a digital display, is quieter at high fan setting and has auto shut off) and downstairs and bought 2 Abbeon HTAB-176 Hygrometer and Temperature devices, one for each floor, so use those to measure temp and humidity. My whole house furnace humidifier has never worked and wastes a lot of water, so I chose this route. Is this unit perfect, nope. But it does the job...over the past few months, it runs nonstop and keeps the relative humidity about 35-37% downstairs and about 52% in our bedroom using the 1 gallon model, but a smaller room. I use a small fan downstairs to help spread the humidity. The larger unit fan is a bit louder than the smaller 1 gallon unit, but not obnoxious, so if you keep it near a TV as I do, out of necessity, you might need to turn it to a lower fan setting in order to hear the TV at your normal volume. I also love the ease of cleaning....just pop off the top, then take to sink, remove filters and takes about 2 minutes to clean! I just replace filter every 2 months instead of soaking in vinegar as some do as filters in my opinion are cheap and not worth time and money for a gallon of vinegar to clean. I don't recommend products typically, just write reviews if I really like a product or hate it. I like the function and look of this Vornado and would buy it again, UNLESS it breaks in a short time. ;)
Review: Detailed review on the Vornado Evap40 Humidifier. I like it a LOT! - This is by far the longest, most detailed review that I have ever written for a product. But, I would like people to know what to expect from this unit, and to learn a bit about humidity and what affects it. So, here we go. OK, I've read at least 100 reviews of different humidifiers on desertcart and other sites before I settled on buying this unit. And, I'm glad -- and sad -- that I did. MOST negative reviews come from people whose expectations can not be met by any humidifier currently on the market. There are undoubtedly bad humidifiers out there, but this is not one of them. Also, some people buy a product with unrealistic expectations as to what that product will actually do, or what care it will require. This is unfair to the product, although the makers do put out some fantastic claims without giving us all the background necessary to understand the claims. So, what are some of the unrealistic expectations I see people complain about? I'll address a few here and give my view of them. (1)The humidifier should make absolutely no noise whatsoever. Really? If the unit operates on electricity with some part that moves, you WILL get some noise - period. How much is dependent on how fast those parts move and/or the type of movement. In the case of this humidifier, it has 3 fan speeds, and off. On the lowest fan setting, placed on a carpeted floor 5 feet from our bed, you can not hear the fan on low. On medium speed (which is where we keep it to sleep), you can hear it a little when you are awake, but it does not keep us from getting to sleep or staying asleep. On high speed, where it will humidify a room the fastest, you can definitely hear it, and we can not sleep with it at this speed. On the lowest speed it will not raise the humidity very much. We use high speed only in the daytime to humidify the air and objects in the room as much as possible. In addition to the fan, you will have the occasional gurgle of water from one of the plastic jugs as it refills the reservoir as water in the reservoir gets evaporated away. Want to know what that sounds like before you buy? Fill a gallon plastic milk jug with water, then pour it out faster than air will enter the jug opening. You will hear and see the water glug and gurgle as the air enters behind the water that empties. Our unit does not "glug", it "gurgles" (a softer sound for only 3 or 4 seconds). If this wakes you from a sleep, then you a VERY light sleeper, you have the unit on a sound resonating object (like a hard nightstand or wooden floor), or it it simply too close to your bed and at too high a height. Try placing it on the floor on a carpeted surface away from your bed. You'll be amazed at what a difference in noise level this makes. 2) The unit should require absolutely no maintenance. REALLY people, do you ever buy anything that requires no maintenance? Do you run your car without doing maintenance on it? What you WILL have to do to keep this humidifier operating in tip-top shape are the following: (A) Refill one or both of the plastic jugs that supply water to the unit as they get used up (evaporated). The jugs have a handle on one side, and are flat on the other side. I lay mine down in a laundry sink, aim the spout over the opening, and then fill it. It takes exactly 1 minute and 15 seconds for me to fill one of the 2 gallon jugs in this fashion (once it is positioned in the sink). 2 gallons is a lot of water, and it weighs 16.72 pounds. So count on having to carry that much weight with the handle provided on the jug if you fill it all the way. Can't carry that much weight? Don't fill it all the way! I bought a bottle of the BestAir Humidifier Bacteriostatic additive to put in the water. I don't know if it works or not, as I have always used it, and have no problems with algae so far. I gave up measuring capfulls of the product, and just guess at the amount as it can't be rocket science. It does NOT prevent my water softener softened water from building up as a deposit on the filter (see B below). The jugs tip into place extremely easily whether the top is on the unit or off the unit. They never spill for me. Do NOT try to tip them slowly -- just set them against the unit at the bottom, and tip them quickly upward into place. Nothing to it. You can remove them one at a time, with the top on the unit, even if the other jug still has water in it. This is a nice feature, as you can simply refill the unit one jug at a time. You can even remove a jug that still has some water in it without any of it spilling out. (YES, for "safety", I keep an aluminum baster/roaster under the unit in case any water were to spill out, but to date none ever has.) B) The filters (they are really wicks) will develop a crusty edge at the top on the outside portion after running a few days. In my case, this is due to my water softener water that I use. I never tried store bought water as my water works just fine in the unit. Whatever water you use, if it has ANY impurities in it, regardless if you can see the impurities or not, then you WILL get a residue on the wicks as the water evaporates. Where else would these impurities go? A pan of water on the stove that is evaporated will also leave behind the same impurities! To ameliorate this issue, I simply turn the wicks upside down and over every other time I fill the jugs! That is, if the yellow/tan buildup is on the top edge outside, rotate the wick until that edge is on the bottom to the inside of the unit. It will re-soften and disappear (only to reappear on the top edge outside later). Then, once a week, or whenever I feel like it, I take these wicks out, take them to my laundry sink, lay them flat on the bottom, fill the sink until the water is about 1" over the top of the wicks, then add a cup of white vinegar. Let the wicks soak in this for about an hour, rinse them in clean water, stand them against inside of the sink on edge to drain and then reinstall them in the humidifier. Voila, the vinegar dissolves the salts that have accumulated, and rinsing them flushes them away. At the same time, I empty out the reservoir of the unit and flush it well with clean water. It is like starting over again. This process takes maybe 15 minutes of time to do once a week or so. BE CAREFUL WITH THE WICKS, as they are easily destroyed. Handle them gently, NEVER try to wring them out or press dry, just stand them on edge against the empty sink when you are done for about 20 minutes, and they will drain on their own. I did buy a second (spare) set, but after 3 weeks, I have not even taken them out of the package. I see no reason why the wicks won't last at least 2 months with proper care -- maybe even a full winter season. C) Other maintenance? I don't know of any, but then I haven't had my unit except for 3 weeks. An old adage my father taught me: It is far easier to spend a little time keeping something clean and operating well than to have to repair it due to neglect. It is true. So, how well does it work, and what is my environment like? First, I live in a 2 story house, with a bedroom and large living room that have very high cathedral ceilings. My bedrooms are all carpeted, and most of the main house (foyer, dining room, dinette, kitchen and laundry room) are tiled. I bought the humidifier to raise the humidity in our master bedroom at night to alieve mild symptoms of difficulty breathing, and getting some blood in our noses at night. It WORKS for doing this. Based on the hygrometer readings, the unit keeps our bedroom (15' x 20') and attached master bath and master closet a full 8% relative humidity higher than in the rest of the house. This despite the fact that we have central heating with LP gas that disperses the air from the bedroom into other parts of the house when it runs (even with the door to the bedroom closed). Hence, some of the additional humidity gets distributed to the rest of the house through the heating system. Note, if you turn your heat down at night (we turn ours down 10 degrees at night), then the bedroom with the door closed will be sealed off from the rest of the house and humidify more quickly until the temp drops the full 10 degrees and the heating system kicks back in. This 10 degree drop also helps increase the relative humidity level at night because cooler air holds less real moisture than warmer air; hence, with the same amount of water in the air, the relative humidity goes up until that water vapor gets absorbed by other things. Note that I just mentioned that water vapor gets absorbed by things. Those things include anything that is soft, including carpeting, bedding, blankets, pillows, wood (Yes, wood does absorb moisture), drywall, etc.. My point is that when you start up any humidifier, all of the objects in the space are very close to the same relative humidity as the air in the room. As you try to increase the relative humidity in the room, the "soft" objects will absorb this same moisture. So, you are humidifying NOT ONLY THE AIR, but all soft objects in that room. That takes a LOT of water to move the relative humidity a little bit! So, do NOT expect ANY humidifier to instantly raise your humidity level any appreciable amount quickly. It will rise slowly, but should rise consistently unless you have a lot of air leaks in your home. In my case, my unit with outside air at about 32 degrees and inside air kept at 60 at night, 70 in the daytime keeps my bedroom at a full 8% relative humidity increase over the rest of the house (53% in the bedroom versus 45% in the rest of the house). That's pretty damn good in my view, and helps us tremendously in sleeping. It also helps any valuable furniture you might have in that room. About the built-in humidistat in this unit. It does work, but as has already been pointed out, there are no settings etched or printed into the dial. If you turn the dial all the way up, the unit will run constantly without ever shutting off. This is for all intents and purposes an "infinite" (100%) setting. After humidifying your room for about a week, try turning down the dial slowly with the unit running. It will likely turn off at some point. Whatever your relative humidity level is in the room, this is the point on the dial where this humidity level will be maintained. If you have a separate hygrometer to read your relative humidity level (I bought the ThermoPro TP50 unit which works very well), then you could mark the dial on your Vornado humidifier with this number to get some relative point of reference for the future, but don't count on that setting continuing to be accurate. Want more info? Check out the photos that will show you that this is a SIMPLE machine with only 6 parts: A top half that contains the fan and all the controls, a bottom half which is nothing but a molded plastic tray that acts as a reservoir to hold the water, 2 wicks that rest against the outside slated portions of the bottom with one edge sitting in the water, and 2 plastic 2-gallon jugs that provide the water to be evaporated. All parts simply slip-fit together without use of any screws, pegs, nails or anything, and they stay together well. Very easy to lift each part away. NOTE: When this unit has water in it, do NOT attempt to pick it up and move it, as it can and will fall apart since all parts simply slip-fit together, and the water is HEAVY. The top can be lifted off without unplugging or turning off the fan, and set aside, as it is self-contained. This reveals the 2 water jugs on either end, and the 2 wicks in the center. Easy as pie! In the photos you will see the hardened residue that I get on the wicks after 4 gallons of water have been evaporated. I have already turned one of the wicks over and around and put it back in one of the photos, which is why it shows on the inside bottom, rather than the outside top where it actually accumulates from the drying action of the unit. How fast does it evaporate water for me? Remember, I'm starting at about 45% relative humidity (not too bad), so the water does not evaporate that fast at this high a humidity level. The unit on medium will evaporate about 2 gallons of water a day into my bedroom raising that humidity level to 53%. If I kept my temperature higher, and/or my air was drier to start with, then the unit will evaporate water into the air at a faster rate. Remember, it is RELATIVE humidity, not absolute moisture in the air that you are measuring. Good luck with your unit, and sleep/live well!

## Features

- COVERAGE — Evaporative humidifier for large room coverage up to 1,000 sq ft with Vornado's signature Vortex Action technology that circulates no mist throughout your bedroom, living room, or home for complete humidity.
- CAPACITY — Large 4-gallon dual tank system delivers up to 4 gallons of moisture output daily, providing extended runtime and fewer refills for continuous whole house humidification in large spaces and bedrooms.
- CONTROL — Built-in adjustable humidistat with 3 speed settings allows precise humidity control for your home essentials, automatically maintaining optimal moisture levels for comfortable air in any room humidifier application.
- LOW MAINTENANCE — Easy to clean humidifier design features removable, leak-proof water tanks that are simple to refill and maintain, making this evaporative humidifier perfect for busy households seeking hassle-free operation.
- TECHNOLOGY — Vornado Evap40 evaporative humidifier uses deep-pitched blades and dual wicking filters to pull dry air through the system, creating natural mist-free operation without visible water droplets for healthier indoor air quality.
- SUPERIOR SUPPORT — Our standards are high, and so are your expectations. If our product doesn’t meet them, we’ll replace it, for up to 5 years. Products designed and supported in Andover, KS.
- Built to meet U.S. voltage requirements. Certified, safety-tested, and warrantied for use only in the U.S.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00O0WOO74 |
| Best Sellers Rank | #109,559 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #126 in Humidifiers |
| Brand | Vornado |
| Brand Name | Vornado |
| Capacity | 4 gallons |
| Color | White |
| Control Method | Touch |
| Customer Reviews | 4.2 out of 5 stars 4,881 Reviews |
| Filter Type | Wick |
| Floor Area | 1000 square_feet |
| Global Trade Identification Number | 00043765009406 |
| Included Components | 1 |
| Item Dimensions D x W x H | 10.5"D x 19.5"W x 13.5"H |
| Item Highlight | Adjustable Humidistat, 3 Speed Settings, Easy to Clean Dual Tank, Large Room Coverage |
| Item Shape | Rectangular |
| Item Type Name | 4-Gallon Evaporative Humidifier with Adjustable Humidistat and 3 Speeds |
| Item Weight | 9 pounds |
| Manufacturer | Vornado |
| Material | Metal, Plastic |
| Model Name | Evap40 |
| Model Number | HU1-0045-65 |
| Number of Packs | 1 |
| Operation Mode | Evaporative |
| Other Special Features of the Product | Manual |
| Part Number | HU1-0045-65 |
| Power Source | Corded Electric |
| Room Type | Bedroom |
| Runtime | 24 minutes |
| Special Feature | Manual |
| UPC | 702679467664 794628325491 791769539114 043765009406 787543893244 |
| Unit Count | 1 Count |
| Voltage | 120 volts |
| Wattage | 43 watts |

## Product Details

- **Brand:** Vornado
- **Capacity:** 4 gallons
- **Color:** White
- **Floor Area:** 1000 square_feet
- **Special Feature:** Manual

## Images

![Vornado Evap40 Evaporative Humidifier, 4-Gal Capacity, 1,000 Sq Ft Coverage - Image 1](https://m.media-amazon.com/images/I/81XUYj0R1pL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to Use and Clean
*by D***Y on January 13, 2025*

Living in central Indiana, I have traditionally used mist humidifiers or warm air humidifiers like the simple Vicks (still made in Mexico and not China unless I am mistaken). Mist humidifiers are just a pain to clean and put too many minerals in the air that are attached to the atomized air droplets and by Spring, it (layers of deposited minerals) comes off my furniture when cleaning. So you probably breathe this in. If using distilled water, not an issue and if your tap water is clean, also not an issue....BUT, if you have questionable water or well water, extremely hard, think of your lungs/throat and if you have infants in the house, which I do). So I chose this humidifier for several reasons, like Made in USA and alleged ease of use. Well, it is definitely easy to use. I love the side tanks and how you just place them and gently flip up...no splashing, no overspill, just easy. Add a few drops of antibacterial solution and slap em in. I do wish it had a digital display so I could measure the exact humidity and have an auto-turnoff. However, I use one upstairs (smaller 1 gallon Tornado version...wish I had just bought 2 of the larger units, but that one does have a digital display, is quieter at high fan setting and has auto shut off) and downstairs and bought 2 Abbeon HTAB-176 Hygrometer and Temperature devices, one for each floor, so use those to measure temp and humidity. My whole house furnace humidifier has never worked and wastes a lot of water, so I chose this route. Is this unit perfect, nope. But it does the job...over the past few months, it runs nonstop and keeps the relative humidity about 35-37% downstairs and about 52% in our bedroom using the 1 gallon model, but a smaller room. I use a small fan downstairs to help spread the humidity. The larger unit fan is a bit louder than the smaller 1 gallon unit, but not obnoxious, so if you keep it near a TV as I do, out of necessity, you might need to turn it to a lower fan setting in order to hear the TV at your normal volume. I also love the ease of cleaning....just pop off the top, then take to sink, remove filters and takes about 2 minutes to clean! I just replace filter every 2 months instead of soaking in vinegar as some do as filters in my opinion are cheap and not worth time and money for a gallon of vinegar to clean. I don't recommend products typically, just write reviews if I really like a product or hate it. I like the function and look of this Vornado and would buy it again, UNLESS it breaks in a short time. ;)

### ⭐⭐⭐⭐⭐ Detailed review on the Vornado Evap40 Humidifier. I like it a LOT!
*by J***R on December 29, 2016*

This is by far the longest, most detailed review that I have ever written for a product. But, I would like people to know what to expect from this unit, and to learn a bit about humidity and what affects it. So, here we go. OK, I've read at least 100 reviews of different humidifiers on Amazon and other sites before I settled on buying this unit. And, I'm glad -- and sad -- that I did. MOST negative reviews come from people whose expectations can not be met by any humidifier currently on the market. There are undoubtedly bad humidifiers out there, but this is not one of them. Also, some people buy a product with unrealistic expectations as to what that product will actually do, or what care it will require. This is unfair to the product, although the makers do put out some fantastic claims without giving us all the background necessary to understand the claims. So, what are some of the unrealistic expectations I see people complain about? I'll address a few here and give my view of them. (1)The humidifier should make absolutely no noise whatsoever. Really? If the unit operates on electricity with some part that moves, you WILL get some noise - period. How much is dependent on how fast those parts move and/or the type of movement. In the case of this humidifier, it has 3 fan speeds, and off. On the lowest fan setting, placed on a carpeted floor 5 feet from our bed, you can not hear the fan on low. On medium speed (which is where we keep it to sleep), you can hear it a little when you are awake, but it does not keep us from getting to sleep or staying asleep. On high speed, where it will humidify a room the fastest, you can definitely hear it, and we can not sleep with it at this speed. On the lowest speed it will not raise the humidity very much. We use high speed only in the daytime to humidify the air and objects in the room as much as possible. In addition to the fan, you will have the occasional gurgle of water from one of the plastic jugs as it refills the reservoir as water in the reservoir gets evaporated away. Want to know what that sounds like before you buy? Fill a gallon plastic milk jug with water, then pour it out faster than air will enter the jug opening. You will hear and see the water glug and gurgle as the air enters behind the water that empties. Our unit does not "glug", it "gurgles" (a softer sound for only 3 or 4 seconds). If this wakes you from a sleep, then you a VERY light sleeper, you have the unit on a sound resonating object (like a hard nightstand or wooden floor), or it it simply too close to your bed and at too high a height. Try placing it on the floor on a carpeted surface away from your bed. You'll be amazed at what a difference in noise level this makes. 2) The unit should require absolutely no maintenance. REALLY people, do you ever buy anything that requires no maintenance? Do you run your car without doing maintenance on it? What you WILL have to do to keep this humidifier operating in tip-top shape are the following: (A) Refill one or both of the plastic jugs that supply water to the unit as they get used up (evaporated). The jugs have a handle on one side, and are flat on the other side. I lay mine down in a laundry sink, aim the spout over the opening, and then fill it. It takes exactly 1 minute and 15 seconds for me to fill one of the 2 gallon jugs in this fashion (once it is positioned in the sink). 2 gallons is a lot of water, and it weighs 16.72 pounds. So count on having to carry that much weight with the handle provided on the jug if you fill it all the way. Can't carry that much weight? Don't fill it all the way! I bought a bottle of the BestAir Humidifier Bacteriostatic additive to put in the water. I don't know if it works or not, as I have always used it, and have no problems with algae so far. I gave up measuring capfulls of the product, and just guess at the amount as it can't be rocket science. It does NOT prevent my water softener softened water from building up as a deposit on the filter (see B below). The jugs tip into place extremely easily whether the top is on the unit or off the unit. They never spill for me. Do NOT try to tip them slowly -- just set them against the unit at the bottom, and tip them quickly upward into place. Nothing to it. You can remove them one at a time, with the top on the unit, even if the other jug still has water in it. This is a nice feature, as you can simply refill the unit one jug at a time. You can even remove a jug that still has some water in it without any of it spilling out. (YES, for "safety", I keep an aluminum baster/roaster under the unit in case any water were to spill out, but to date none ever has.) B) The filters (they are really wicks) will develop a crusty edge at the top on the outside portion after running a few days. In my case, this is due to my water softener water that I use. I never tried store bought water as my water works just fine in the unit. Whatever water you use, if it has ANY impurities in it, regardless if you can see the impurities or not, then you WILL get a residue on the wicks as the water evaporates. Where else would these impurities go? A pan of water on the stove that is evaporated will also leave behind the same impurities! To ameliorate this issue, I simply turn the wicks upside down and over every other time I fill the jugs! That is, if the yellow/tan buildup is on the top edge outside, rotate the wick until that edge is on the bottom to the inside of the unit. It will re-soften and disappear (only to reappear on the top edge outside later). Then, once a week, or whenever I feel like it, I take these wicks out, take them to my laundry sink, lay them flat on the bottom, fill the sink until the water is about 1" over the top of the wicks, then add a cup of white vinegar. Let the wicks soak in this for about an hour, rinse them in clean water, stand them against inside of the sink on edge to drain and then reinstall them in the humidifier. Voila, the vinegar dissolves the salts that have accumulated, and rinsing them flushes them away. At the same time, I empty out the reservoir of the unit and flush it well with clean water. It is like starting over again. This process takes maybe 15 minutes of time to do once a week or so. BE CAREFUL WITH THE WICKS, as they are easily destroyed. Handle them gently, NEVER try to wring them out or press dry, just stand them on edge against the empty sink when you are done for about 20 minutes, and they will drain on their own. I did buy a second (spare) set, but after 3 weeks, I have not even taken them out of the package. I see no reason why the wicks won't last at least 2 months with proper care -- maybe even a full winter season. C) Other maintenance? I don't know of any, but then I haven't had my unit except for 3 weeks. An old adage my father taught me: It is far easier to spend a little time keeping something clean and operating well than to have to repair it due to neglect. It is true. So, how well does it work, and what is my environment like? First, I live in a 2 story house, with a bedroom and large living room that have very high cathedral ceilings. My bedrooms are all carpeted, and most of the main house (foyer, dining room, dinette, kitchen and laundry room) are tiled. I bought the humidifier to raise the humidity in our master bedroom at night to alieve mild symptoms of difficulty breathing, and getting some blood in our noses at night. It WORKS for doing this. Based on the hygrometer readings, the unit keeps our bedroom (15' x 20') and attached master bath and master closet a full 8% relative humidity higher than in the rest of the house. This despite the fact that we have central heating with LP gas that disperses the air from the bedroom into other parts of the house when it runs (even with the door to the bedroom closed). Hence, some of the additional humidity gets distributed to the rest of the house through the heating system. Note, if you turn your heat down at night (we turn ours down 10 degrees at night), then the bedroom with the door closed will be sealed off from the rest of the house and humidify more quickly until the temp drops the full 10 degrees and the heating system kicks back in. This 10 degree drop also helps increase the relative humidity level at night because cooler air holds less real moisture than warmer air; hence, with the same amount of water in the air, the relative humidity goes up until that water vapor gets absorbed by other things. Note that I just mentioned that water vapor gets absorbed by things. Those things include anything that is soft, including carpeting, bedding, blankets, pillows, wood (Yes, wood does absorb moisture), drywall, etc.. My point is that when you start up any humidifier, all of the objects in the space are very close to the same relative humidity as the air in the room. As you try to increase the relative humidity in the room, the "soft" objects will absorb this same moisture. So, you are humidifying NOT ONLY THE AIR, but all soft objects in that room. That takes a LOT of water to move the relative humidity a little bit! So, do NOT expect ANY humidifier to instantly raise your humidity level any appreciable amount quickly. It will rise slowly, but should rise consistently unless you have a lot of air leaks in your home. In my case, my unit with outside air at about 32 degrees and inside air kept at 60 at night, 70 in the daytime keeps my bedroom at a full 8% relative humidity increase over the rest of the house (53% in the bedroom versus 45% in the rest of the house). That's pretty damn good in my view, and helps us tremendously in sleeping. It also helps any valuable furniture you might have in that room. About the built-in humidistat in this unit. It does work, but as has already been pointed out, there are no settings etched or printed into the dial. If you turn the dial all the way up, the unit will run constantly without ever shutting off. This is for all intents and purposes an "infinite" (100%) setting. After humidifying your room for about a week, try turning down the dial slowly with the unit running. It will likely turn off at some point. Whatever your relative humidity level is in the room, this is the point on the dial where this humidity level will be maintained. If you have a separate hygrometer to read your relative humidity level (I bought the ThermoPro TP50 unit which works very well), then you could mark the dial on your Vornado humidifier with this number to get some relative point of reference for the future, but don't count on that setting continuing to be accurate. Want more info? Check out the photos that will show you that this is a SIMPLE machine with only 6 parts: A top half that contains the fan and all the controls, a bottom half which is nothing but a molded plastic tray that acts as a reservoir to hold the water, 2 wicks that rest against the outside slated portions of the bottom with one edge sitting in the water, and 2 plastic 2-gallon jugs that provide the water to be evaporated. All parts simply slip-fit together without use of any screws, pegs, nails or anything, and they stay together well. Very easy to lift each part away. NOTE: When this unit has water in it, do NOT attempt to pick it up and move it, as it can and will fall apart since all parts simply slip-fit together, and the water is HEAVY. The top can be lifted off without unplugging or turning off the fan, and set aside, as it is self-contained. This reveals the 2 water jugs on either end, and the 2 wicks in the center. Easy as pie! In the photos you will see the hardened residue that I get on the wicks after 4 gallons of water have been evaporated. I have already turned one of the wicks over and around and put it back in one of the photos, which is why it shows on the inside bottom, rather than the outside top where it actually accumulates from the drying action of the unit. How fast does it evaporate water for me? Remember, I'm starting at about 45% relative humidity (not too bad), so the water does not evaporate that fast at this high a humidity level. The unit on medium will evaporate about 2 gallons of water a day into my bedroom raising that humidity level to 53%. If I kept my temperature higher, and/or my air was drier to start with, then the unit will evaporate water into the air at a faster rate. Remember, it is RELATIVE humidity, not absolute moisture in the air that you are measuring. Good luck with your unit, and sleep/live well!

### ⭐⭐⭐⭐ Good but could be better
*by A***R on January 8, 2024*

Update 2 Dec 2025: The following is roughly what I'm getting on a filter. I replace the filter at the max days. The filter begins reduced soaking up of water at minimum days or before. No bacteriostatic: 20-30 days Half bacteriostatic: 30-40 days Full bacteriostatic: 40-50 days Regardless of the choice, either spend more on filters or spend more on bacteriostatic. This is the end result of my tests. I find this annoying but do need the 4 gal capacity. There is another type of humidifier that is more expensive initially but may be cheaper over time. I can't remember it off hand but may look into that after some more years to get away from bacteriostatic. Overall I'm happy with the Vornado only because of the capacity. But, am absolutely not happy with the filters of this type of humidifier. I by far prefer the Vicks warm steam humidifier, but that one just doesn't work for the location where the Vornado is used for me, just as many others won't work well there well enough for me. Everything else from others... I tested even using a filter from a different manufacturer brand that someone said they use and even using the larger Vornado filter as two examples. These things did not work any better. Bacteriostatic is the only thing I found to actually be worth doing. Update 1: Going to take another year or two maybe. At this time, I do know that various things people state here and elsewhere with filters, do not really work. In other words, not worth doing from what I've seen. I'm finding cleaning the filters to not be the way to go. Getting the filter to last longer without cleaning is much better. Then just replace. To get it to last longer, everything needs to be fully and correctly cleaned during filter change, and use bacteriostatic. This is currently what I find to work best as according to the manual. I don't expect this to change at this time. If the filter is hard (check while its in use when you see reduction in water use), its very unlikely that cleaning will help with that. The filter isn't good at that point. Any hard parts will not soak up water and will reduce water going into the air. The key is keeping it from developing those hard spots for a longer period of time. Original: Strike-First off: You have to clean the filters or you will waste money. That's your choice.-Strike. See above for why its now striked. The filter life will range. They have to be cleaned once the water level in the tanks stop dropping. Can clean by buying a cheap dish tub (about $3) then putting one filter at a time in it and filling it with water to just above the filter and adding 1/2 to 1 cup of white vinegar. Let that sit for a few hours eg 5 to 9 hours. Then carefully take out the filter and rinse it without squeezing it or anything else to damage it. Then just let it sit for approx 24-48 hours till its fully dry. Putting a single paper towel under it can dry it faster. You should get an extra set of filters to swap them and keep it running while cleaning the dirty filters. Am currently at 32 days of a filter on its first cleaning so far for a total of over 2 months on that one filter using filtered tap water. It would only have been 30 days if I hadn't of cleaned it. I also clean the vornado generally when switching filters. The problem is that filter life will range and not from the water. Air quality, filter QA, running time, etc all affect it. So some people will see a filter stop quickly then throw them out. That's a total waste. You have to clean them lol. I'm looking into various things to see how filter life turns out. So far cleaning is the only way to go. Will update this if something works better or longer. Negatives for the one star down are the filter having to be dealt with, price of the filters, the base being so thin that its required you test it with water before first use due to possibility of cracking during shipping (rofl), and the water blurping during use is annoying and too loud. It however definitely works great for putting out humidity. You won't see anything (its same as humidity in general) but the water will disappear (and not onto the floor funny you). I have it running constantly on low fan for approx 2 gal per 24 hours in the air. Low fan is quiet. Med and high are too loud. I will take this over many humidifiers.

## Frequently Bought Together

- Vornado Evap40 4-Gallon Evaporative Humidifier with Adjustable Humidistat and 3 Speeds
- Vornado MD1-0034 Replacement Humidifier Wick (Pack of 2) , White
- Vornado MD1-0002 Replacement Humidifier Wick (2-Pack),White

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