---
product_id: 1786203
title: "Premium Odor-Reducing Air Purifier Replacement Pre-Filter, HRF-APP1 / Filter (A+), Black"
brand: "honeywell"
price: "S$71"
currency: SGD
in_stock: true
reviews_count: 8
category: "Honeywell"
url: https://www.desertcart.sg/products/1786203-premium-odor-reducing-air-purifier-replacement-pre-filter-hrf-app1
store_origin: SG
region: Singapore
---

# Maximizes HEPA filter lifespan Custom cut-to-fit design Zeolite + activated carbon combo Premium Odor-Reducing Air Purifier Replacement Pre-Filter, HRF-APP1 / Filter (A+), Black

**Brand:** honeywell
**Price:** S$71
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe smarter, live fresher — the A+ filter your air purifier deserves!

## Quick Answers

- **What is this?** Premium Odor-Reducing Air Purifier Replacement Pre-Filter, HRF-APP1 / Filter (A+), Black by honeywell
- **How much does it cost?** S$71 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/1786203-premium-odor-reducing-air-purifier-replacement-pre-filter-hrf-app1)

## Best For

- honeywell enthusiasts

## Why This Product

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

## Key Features

- • **Extended Filter Life:** Pre-filter reduces larger particles, protecting and prolonging the life of your HEPA filter.
- • **Advanced Odor Defense:** Zeolite-infused activated carbon traps stubborn household odors & VOCs for fresher air.
- • **Tailored Fit Flexibility:** Easily cut the pre-filter to perfectly fit any Honeywell HEPA purifier model or other devices.
- • **Trusted Doctor’s Choice:** Honeywell, the #1 brand recommended by doctors for cleaner, healthier indoor air.
- • **Versatile & Multi-Purpose:** Use beyond purifiers—ideal for pet areas, closets, or even deodorizing drawers and fridges.

## Overview

The Honeywell Premium Odor-Reducing Air Purifier Replacement Pre-Filter (HRF-APP1) features a powerful blend of zeolite and activated carbon to effectively reduce odors and harmful gases. Designed for easy customization, it fits all Honeywell HEPA air purifiers and extends HEPA filter life by capturing larger particles. Trusted by doctors and backed by thousands of positive reviews, this pre-filter ensures your indoor air stays fresh, clean, and inviting.

## Description

With the Honeywell Air Purifier A+ carbon filters, capture larger particles such as lint, fibers and pet hair. To help ensure efficiency and performance, it’s important to replace your air purifier pre-filters every three months. This “A+” air purifier pre-filter can be easily cut to size to fit any Honeywell HEPA Air Purifier model. They are certified to help remove lint or pet hair, unwanted particles. A Honeywell home air purifier will filter and circulate air up to 5 times an hour – 120x per day in its stated room size*. You can breathe easy knowing it’s working to help capture unwanted particles. If you have any issues, pets or stale indoor air, air purifiers help remove airborne particles & help improve air quality. Honeywell Air Purifier The Doctor’s Choice, the #1 brand recommended by doctors. Honeywell air purifiers are a trusted partner in the fight against airborne particles. Disclaimers: *From the air that passes through the filter. Overall particle reduction depends on many factors including the amount of air processed, the pollutant type and the pollutant introduction rate into the environment. ** Based on March 2018 Cascade Survey Research results reporting 48 out of 70 (69%) surveyed doctors that recommend a brand of portable air purifiers to their patients, recommend “Honeywell” air purifiers as their first choice.

Review: Genuine activated carbon eliminates odors & VOC's that other generic brands don't - I bought this because I had been buying the HRF-AP1 from the largest brick & mortar retailer in the world (starts with a W). They stopped carrying it, seemingly overnight, and instead only offered only HEPA and carbon prefilters packaged together. You replace the carbon pre-filter 5x to 10x more often than HEPA cartridge so that move made no sense. You would be hard pressed to find a genuine Honeywell HRF-AP1 pre-filter in stock anywhere locally or even on the web. I initially bought a 2 pack of 16"x48" prefilters described as "odor reducing", "carbon pad", & "charcoal filter". This was a major aftermarket domestic filter company that sells on desertcart. I knew something was off when I opened their filters and there was an ODOR. What? Wait a minute, how am I detecting something like a VOC coming from an activated carbon filter? I compared the filtering ability of some HRF-AP1 remnants to the aftermarket junk I bought and wasn't all that shocked to fink that the honeywell remnant removed just about any source of odor I put in front of it while the aftermarket had no affect on any of the same odor sources or VOC sources. Yeah, I eventually became disgusted by the smells accumulating in my living space and aggressively searched for a viable alternative. I noticed that desertcart manages to keep the HRF-APP1 A+ version in stock for just a few bucks more than what I was used to paying. It threw me off that they used a generic pic of the carbon filter wrapped around a drum HEPA cartridge instead of a pic of the retail box which one might expect to see. The only difference I can see is that the A+ version has white flecks in the filter which are identified by Honeywell as "zeolite" which you can read all about on wikipedia. It has some ups and downs. For instance now I don't feel comfortable wearing a square of HRF-APP1 inside a mask since zeolite is a respiratory irritant. You can cut this Honeywell activated carbon filter sheet to fit just about anything that you need a filter or pre-filter. For example, I use it for odor reduction as a prefilter on two Holmes HEPA units. I can make 4 prefilters with a little left over for other things such as deodorizing the fridge, sock drawers, bath towel storage area etc. etc. I suspect that Honeywell doesn't like that their product gets used for so many other applications, especially HEPA units made by other brand names/manufacturers since a major retailer started to only carry the package deal of HEPA and carbon pre-filters together. If so, what would be the reasoning? They are making MORE money than if they only sold the carbon filters to people needing them for Honeywell products. This is one of the most value packed and versatile products out there. I hope this review helps others in making a wise purchase.
Review: These do exactly what I was hoping they'd do. Odor removing performance. - These do Exactly what I was hoping they would. Definitely help cut down on odors and have the air in the room smelling fresh and clean. Like other's have said, they are more porous and have white specs of odor absorbing additive, which is by design. Cutting them to fit with the templates provided was somewhat easy, but I do wish they came in different pre-sized versions. Also, I do not know how long the carbon/zeolite will last with de-odorizing, but it was immediately noticeably working within an hour of installation.

## Features

- UNWANTED SMELL REDUCING FILTER – This A plus air purifier replacement filter includes zeolite and activated carbon for extra unwanted smell reduction performance They help the air that passes through the filter and absorb certain common harmful household gases and fumes
- Helps reduce odors and maximize HEPA filter life
- To ensure stated product performance, use only Genuine Honeywell Replacement Filters
- Replacement Filter Type A Plus, including zeolite for extra odor reduction performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #29,940 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #203 in Air Purifier Filters |
| Brand | Honeywell |
| Compatible Devices | Air Purifier |
| Customer Reviews | 4.6 out of 5 stars 4,541 Reviews |
| Global Trade Identification Number | 00092926000981 |
| Item Weight | 0.3 Pounds |
| Material | Activated carbon |
| Product Dimensions | 8.27"L x 2.75"W x 10.13"Th |

## Product Details

- **Brand:** Honeywell
- **Material:** Activated carbon
- **Product Dimensions:** 8.27"L x 2.75"W x 10.13"Th
- **Compatible Devices:** Air Purifier
- **Item Weight:** 0.3 Pounds
- **Global Trade Identification Number:** 00092926000981
- **UPC:** 092926000981
- **Number of Items:** 1
- **Manufacturer:** Kaz
- **Product Grade:** new

## Images

![Premium Odor-Reducing Air Purifier Replacement Pre-Filter, HRF-APP1 / Filter (A+), Black - Image 1](https://m.media-amazon.com/images/I/81idjJbGenL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does this pre-filter work for HPA300?  I am getting conflicting info.**
A: It does but you have to cut it to fit

**Q: Does this pre-filter work for 50250-s? I am getting conflicting info.**
A: Just found this link http://www.honeywellcleanair.com/air-purifiers/buy-honeywell-air-purifiers/honeywell-premium-odor-reduction-universal-carbon-pre-filter-HRF-APP1-38002/Which clearly shows its compatible with 50250.

**Q: pre-filter for Hepa 17000 (prefilter 32002 38002) (Hepa 20500)?**
A: Not sure I understand the question but the box for the Honeywell Air Purifer Pre-Filter has a chart which shows what models the filters work on. One category listed is "17XXX."

**Q: does honeywell ever read these questions?  does honeywell know how confused everyone is, who is looking for filters?  sizes and item numbers do not ma**
A: We do read these. We would like to know what sizes and descriptions are not matching. Please reach out to us directly so we can assist you. Our email and phone number can be found in your Owner’s Manual or on our website.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Genuine activated carbon eliminates odors & VOC's that other generic brands don't
*by S***M on January 23, 2023*

I bought this because I had been buying the HRF-AP1 from the largest brick & mortar retailer in the world (starts with a W). They stopped carrying it, seemingly overnight, and instead only offered only HEPA and carbon prefilters packaged together. You replace the carbon pre-filter 5x to 10x more often than HEPA cartridge so that move made no sense. You would be hard pressed to find a genuine Honeywell HRF-AP1 pre-filter in stock anywhere locally or even on the web. I initially bought a 2 pack of 16"x48" prefilters described as "odor reducing", "carbon pad", & "charcoal filter". This was a major aftermarket domestic filter company that sells on Amazon. I knew something was off when I opened their filters and there was an ODOR. What? Wait a minute, how am I detecting something like a VOC coming from an activated carbon filter? I compared the filtering ability of some HRF-AP1 remnants to the aftermarket junk I bought and wasn't all that shocked to fink that the honeywell remnant removed just about any source of odor I put in front of it while the aftermarket had no affect on any of the same odor sources or VOC sources. Yeah, I eventually became disgusted by the smells accumulating in my living space and aggressively searched for a viable alternative. I noticed that Amazon manages to keep the HRF-APP1 A+ version in stock for just a few bucks more than what I was used to paying. It threw me off that they used a generic pic of the carbon filter wrapped around a drum HEPA cartridge instead of a pic of the retail box which one might expect to see. The only difference I can see is that the A+ version has white flecks in the filter which are identified by Honeywell as "zeolite" which you can read all about on wikipedia. It has some ups and downs. For instance now I don't feel comfortable wearing a square of HRF-APP1 inside a mask since zeolite is a respiratory irritant. You can cut this Honeywell activated carbon filter sheet to fit just about anything that you need a filter or pre-filter. For example, I use it for odor reduction as a prefilter on two Holmes HEPA units. I can make 4 prefilters with a little left over for other things such as deodorizing the fridge, sock drawers, bath towel storage area etc. etc. I suspect that Honeywell doesn't like that their product gets used for so many other applications, especially HEPA units made by other brand names/manufacturers since a major retailer started to only carry the package deal of HEPA and carbon pre-filters together. If so, what would be the reasoning? They are making MORE money than if they only sold the carbon filters to people needing them for Honeywell products. This is one of the most value packed and versatile products out there. I hope this review helps others in making a wise purchase.

### ⭐⭐⭐⭐⭐ These do exactly what I was hoping they'd do. Odor removing performance.
*by A***O on July 19, 2025*

These do Exactly what I was hoping they would. Definitely help cut down on odors and have the air in the room smelling fresh and clean. Like other's have said, they are more porous and have white specs of odor absorbing additive, which is by design. Cutting them to fit with the templates provided was somewhat easy, but I do wish they came in different pre-sized versions. Also, I do not know how long the carbon/zeolite will last with de-odorizing, but it was immediately noticeably working within an hour of installation.

### ⭐⭐⭐⭐⭐ Very good
*by G***G on August 2, 2025*

Very good replacements. Good quality and they fit and do what I need them to do for my filter. These help keep my home smelling fresh and help so much with dust in the air, I can breathe so much better and they help my headaches as well as sinuses.

## Frequently Bought Together

- Honeywell Premium Odor-Reducing Air Purifier Replacement Pre-Filter, HRF-APP1 / Filter (A+)
- Honeywell HEPA Air Purifier Filter R, 3-Pack for HPA 100/200/300 and 5000 Series - Airborne Allergen Air Filter Targets Wildfire/Smoke, Pollen, Pet Dander, and Dust
- Honeywell Air Purifier Filter for Pet Odor – Filter S for HPA3000 PowerPlus and HPA5000 Insight Series, HRFSP1

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-12*