SHARP Smart Air Purifier for XL Rooms – Covers up to 2,430 sqft in one hour, Compatible w/Alexa, True HEPA Filter Air Purifier for Living Room, Dust, Smoke, Pollen - FXJ80UW

Updated Feb 10,2016 It's still working just fine. I've been using it everyday since I got it. Especially winter when it's dry and cold outside. I usually have the windows and doors closed coz it's cold and the heater is on. Hence the air purified is needed plus humidifier helps me a lot at night through out my sleep. The filters are still doing great. I washed the charcoal filter ( black one) once in awhile and still work like a champ. I can't say enough how much I love this air purifier which help me to get rid of allergies and flu ( Plasma cluster kill the virus and bacteria in the air). At this point I know it sounds so cheesy but I can't live without it in the daily life. Worth the money and best gift for myself EVER. ************************************************************************************************ It took some time to write this product review for me but so far I love it and very happy with it.Just to clarify I bought this product by myself I dont get discount to exchange the review. I did a lot of research before I bought it. Here is the reasons why 1. My room is about 498 ft2 ( minus the bathroom, closet and laundry room it's about 350 ft2) which is perfect size according to product info it's for room up to 347 square feet. However when you buy air purifying you can calculate by using the number of AHAM Certified CADR x 1.5 = capacity of size's room (ft2) for this product it has Dust/Smoke/Pollen = 231/220/245 use the number of Dust 231 x 1.5 = 346.5 ft2 so it's pretty accurate to info of this product.Don't be fooled by some brand that tell you to use for medium or large room but the number of CADR is low because it's not efficient to purifying the air. The higher number the better air purify. Some companies /brands say their products for 550 ft2 or bigger but to be practical it's really not for example Rabbit Air BioGS 2.0 : The BioGS SPA-550A air purifier advertise that will filter all the air in a room up to 550 sq but the CADR as below SPA-550A CADRs / Sharp KC-860 Test Rating Dust 149 /231 Pollen 162 / 220 Smoke 135 /245 as you can see Sharp KC-860U is better in every Category with the same price.Don't forget to look up CADR number before you buy air purifier any brands as you know they can say whatever... for mid size room , large room , 550 ft2 625 ft2 or anything but they CAN'T lie on CADR number.It's the same standard that test the products for every brand. 2. This sharp KC-860 has Plasmacluster® ion technology from Sharp.It is remarkable!! It's better than Ionizer.. you know some brands only have filters or might have negative ion technology but Sharp is amazing that purifies the air by emitting positive and negative ions.It deactivates suspended airborne mould, viruses, dust mite allergens and bacteria and also odors like pet, cooking, garbage and cigarette smoke. Like I said I live in studio room which is kitchen is open sometime when I cooked it had smoke a lot and fire alarm went crazy I turn on high setting and everything was fine. (...) (...) 3. Permanent Pre-Filter ( washable), long life active carbon filter ( up to 5 years and washable ) , long life True Hepa filter ( up to 5 years but can't wash it).For me It think this is one think you should consider when you buy air purifier because I know some brands are cheaper but look up on filter they have to be changed every 6 months ,8 month or 2 years cost of heap filter of course not cheap so total cost at the end would be the same but you will get a lot better quality product and definitely more functional and powerful. (...) 4. Sharps's sensor works great !! it detects dust automatically and sensor display change from green to orange from orange to red( if it's really dusty) somehow I find this kinda entertaining. If you set on Auto setting the fan will go on high automatically until sensor is back on orange and green then the fan come back to medium and low eventually. (...) 5. I love this special "Humidifying function" : Unlike any other air purifiers this product has advance and beyond technology. I live in Seattle I know it's rain a lot but in winter it's cold and dry or I usually turn on the heater so the humid in my room is pretty low during this time ( should be between 40 - 60 if it's less than 40 yes virus,bacteria and mold is hard to survive so am I lol however if more than 60 of course mold can grow easily ,bacteria and virus love high humid). This product control humidity and when it's dry or low humid it adds up quickly and constantly.When I sleep I normally set on "clean air and humidify" mode by overnight it runs out of water! wow It helps me a lot when I have the heat on because I hate waking up with dry throat,dry nose and chap lips. ****The tank holds 1.14 gallons, around 9 pints, of water. 6. Sharp KC-860U is really quite on low setting mode ( they have 3 mode high/medium/low). I basically can't hear the noise of it at all when it's on low I saw on another website review this product is among the quietest air cleaners especially considering the air-cleaning power generated. Even on medium it doesn't bother me when I watch TV but on high it could be a lil loud well sound like when the heater is operating. 7. sleek design, very stylish more than that you can adjust the light display ( normal/dim off) - Ion can be on/off - clean air ( only air filter) or Clean air& humidify ( air and humid) - Quick clean : very intelligent mode the fan will kick high first then clean the air for awhile and back to normal mode whatever you set. - Auto mode : adjust,detect and react automatically normally if the sensor display on green light the fan is on low but when it detects the dust the sensor changed color the fan go high and back to low. (...) Cons: 1. Only one year warranty 2. I heard from other review said their customer service is not good in this case I don't know yet but I will update my review in the future What I can ask for more for this price range :) so far I'm very happy with it and if you need more information you can check on the links below.Hope I can help you to decide :) http://www.sharpusa.com/ForHome/HomeEnvironment/AirPurifier/Models/KC860U.aspx?tech_specs=1 http://www.air-purifier-power.com/sharpplasmaclusterkc860ureview.html

I researched a while before finally purchasing this model. While like most other models it doesn't truly have the advertised effects on all but the highest settings it does a good job of eliminating odors and improving air quality on its Auto settings. The filters are easy to clean, and I didn't expect to enjoy the Humidifier function as much as I do in the winter. The noise is tolerable on all but the highest setting and near silent at the lowest. The lights are bit bright, but they can be turned off partially or entirely, but not dimmed. The quick Clean function works well. It brings the fan speed up and down in a way to quickly circulate air, but it's pretty annoying. You don't want to be watching TV or trying to sleep with that setting on. I only use it to prep a room and then turn it back to auto when I'm in the room. There are some good reviews of these products on youtube which was very helpful and I'm confident it was the best for the money in my situation.

I never paid much attention for the need for air purifier until the smoke from all the fire in the west where my family and I live. Instantly, I picked 2 of the top of the line of air purifiers by the brand I can trust for its state of the art innovation and technology and reliability: FXJ80U by SHARP. They are well worth paying premium for great technology that will last: I am especially enthusiastic about the SHARP Plasmacluster technology that generates ions that actively eliminates microscopic pollutants. And the double filter system using HEPA filter gives me sense of peace of mind. For example, according to PC magazine, NASA study found that HEPA filters can capture almost 100 percent of particles as small as 0.01 micrometers (or 10 nanometers), well exceeding the standard. To put that in perspective, COVID-19 is about 60 to 140 nanometers in diameter. It’s easy to set up and get going. I am sensitive to noise and this product is super quiet which I love. The app is convenient to use and also love using Alexa to change settings. The 2 air purifiers I bought have been magnificent for me and family, and have been recommending my colleagues to buy SHARP air purifier FXJ80U.

I recently evaluated this unit and the Sharp FP-A80UW before buying several more FP-A80UW's. I selected the FP-A80 because of value. It offers a good combination of an activated carbon element, a pleated filter, and a 'plasmacluster' ion generator. It doesn't incorporate a high-maintenance humidifier and it offers a good flow-rate for the respective noise levels. I also have an IQ Air Health Pro Plus, to which I can compare this Sharp unit. The most important thing to understand is that this is a bedroom size unit that will do a good job in a typical suburban house bedroom -- certainly not a whole house. The activated carbon element in this unit is light and although it's nice to have, you will probably realize a significant benefit from a filter with a much larger carbon load. The IQ Air GC series is a good example, but costly. The "V5" unit the the Health Pro Plus is good for a room, but it's a significantly larger and more noisy than this Sharp unit which simply lacks enough carbon. I built my own attic unit using sheet metal and bulk ctc60 I bought here on Amazon. The pleated filter on the Sharp is effective, though certainly not as meticulous as the IQ Air HEPA filter. Bear in mind that "HEPA" is a performance rating of the filter media and not the filter unit or system. Laser-particle counter wielding fanatics have proven the IQ Air's superiority as a complete system. But certainly some filtering is better than none and the Sharp offers two advantages: a dust detection circuit that can be set to automatically increase fan speed based on the detection of particles; and a quieter noise level at low speed. I suppose to compare the noise levels fairly, you would have to evaluate the clean-air delivery rate (CADR) to noise ratio. But "noise" is a subjective measurement and average-weighted "dB" ratings don't tell the whole story. Air filters are not often rated in "sones" either, and people have different opinions on various sound pressure levels at different frequencies. Regardless, the IQ Air HPP on the lowest setting is louder than the Sharp on the lowest setting. Whether it has a higher CADR or is better at any given noise level for any other reason, the IQ Air is louder. Possibly it can be made as quiet as the Sharp if you take out the V5. I don't know, but it's still several times more expensive and a lot bigger than the Sharp -- which is simply to say that if you're looking for something quieter for the bedroom, the Sharp is worth considering. The plasmacluster technology is interesting. While ion generators could be meaningful additions to air purifying equipment, they have side effects and their overall effectiveness seems questionable. If the technology was totally effective, we would certainly see more significant commercial applications. Sharp PR boasts of an application in the Imperial Hotel, but it certainly has the appearance of a promotional operation. Even ordinary, non 'plasmacluster' ion generators do not have widespread commercial adoption. Sharp's literature is nevertheless certain to point out how many millions of units they've sold to convince you otherwise. Nevertheless, I 'believe' in the plasmacluster technology. I 'bought it' so to speak, figuratively and literally. While I have no way of objectively evaluating the results I'm getting as a consequence of using the plasmacluster ion generator, I can clearly distinguish one negative side-effect. Running the plasmacluster overnight significantly lowers the room's humidity to a level where it can become irritating -- this is even with the humidifier in the KC-860U running. I had to supplement the KC-860U with an additional humidifier in the room to prevent this. Admittedly, I have very low natural humidity levels. During the non-heating season, my house typically has 30 to 35% RH. My family is adjusted to living in low humidity. 30% would be irritating to anyone coming from a 50-60% norm, but we're usually not too irritated until it gets down into the teens or "bone dry." Even though I have several hygrometers, including the built-in unit on the KC-860U, the readings vary wildly. They're simply not accurate. More subjectively I can tell you that the plasmacluster unit seems to dry out the room badly. The reason I chose the FP-A80 is because it dispenses with the inadequate humidifier. My home's needs are much greater than the tiny unit built into the Sharp 860U which hardly keeps up with the unit's own demand. I opted for the FP-A80 and some higher output humidifiers that require less frequent maintenance. During the heating season, the demand for humidity is even greater as the cold air is incapable of holding much moisture and when heated, the RH drops to very irritating levels. I have a furnance-mounted 12gpd unit that helps with the extra demand in that season. I suspect the Plasmacluster's consumption of water-vapour outstrips the 860's humidifier's output on low fan speeds. In order to get enough humidifier output to counter the plasmacluster, you have to run high and loud fan speeds or the Plasmacluster will dry out your air. Of course, this is a good thing if you have naturally high humidity -- in which case you should certainly prefer the FP-A80. While exactly how plasmacluster works is somewhat shrouded in marketing babble that is more bent on convincing you that it's good than explaining what it actually does in simple and realistic terms that would truly lay it bare, it's apparent that that Sharp is using some kind of plasma streamer to ionize water vapor molecules, the components of which are subsequently dispersed as both negatively and positively charged particles. While I find this explanation insufficient, we can at least be certain that it uses water. That not only means that it will dry out your room, but also that providing adequate water will also make it more effective. Since a humidifying unit like the 860 provides water vapor "at the source," the air passing through the plasmacluster should actually be at a much higher humidity than the room itself after the humidified air is diffused. Does that intense humidity at the source improve the plasmacluster's performance compared to an FP-A80 operating at room-level humidity? I suspect not because once the 860's hygrometer reaches 60% or so, the humidifier shuts off, at which point it would not have any continuing advantage to a non-humidifying unit, even if there was any advantage to it while the humidifier was actually running. Unfortunately it's not clear with the FP-A80 and 860 units are what sharp calls "25,000 ions/cm3" or "7000 ions/cm3" generators. They advertise some very costly Japanese units as having the higher output generators but don't make it clear where the US models stand. At first I was concerned that I get "more power" because, of course, I want "more" of these things, whatever they are, because if some are good, more must be better! I suspect, but have no concrete evidence that the FP-A80 and the 860U have the higher production generators, but if they don't, I don't really care because they certainly fry enough water out of my air as it is. The costly imports from Japan do not have the value proposition of this FP-A80 at all. In that price range, I would go for IQ Air. One thing worth mentioning in favor of this KC-860U is how nicely finished the product is. Compared to the FP-A80U, the 80 looks and feels cheap, while this 860 gives the impression it's worth twice as much. The casework is beautiful and seems totally solid by comparison to the flimsy-feeling 80. The controls feel and respond better. The lighting on the front panel is spectacular. I really like it. While the 80 is totally plain and uninspired. You certainly get something for the extra hundred fifty-something dollars, but it's up to you to decide whether it's worth it or not. Practically speaking, you get the small humidifier -- not a very good bargain. More subjectively, the 860 is definitely more pleasing. But since I am buying four or five units, I chose to be practical.

I live in an apartment building where there is lots of dust due to nearby construction, and I have seasonal allergies. This air purifier and humidifier works great...and it’s silent and energy efficient. You hardly know that it is running. Since I purchased it about a month ago, I have really noticed an improvement in the air quality and I sleep much better. It’s expensive, but well worth it.

This air purifier/humidifier works as advertised! It eliminated our cat odors and cleaned the air in our whole apartment within two days. I really love that it is quiet (at "Auto") and has a nice flashy interface. Also, if you are worried about the effect of the plasma cluster technology on your children's health, you can always turn the plasma feature off and have it run on the HEPA filter only. I only have two minor complaints: 1. At "Auto", the humidifier blows anemically even though the sensor registers "Low" humidity. Obviously, the auto is meant for the air function. It would have been nice for the auto to engage to stronger blowing mode not only when it senses bad air, but also low humidity. 2. There are no wheels. I would rather it be on wheels so I won't have to carry it around (as I am not supposed to) when I need a little refresher in another room. One alternative would be to purchase a little wheel cart and place it on top of it. Still even with these two minor complaints, this is a great machine.

Update to my earlier review below: filed a complaint with Sharp customer support and asked them to replace the parts that got contaminated with mold (water tray, filter, and water tank) to which they said that it was my fault I was filling the tank up with water. I tried to explain that this was a flaw in the design that made water leak from the tank and stay in the tray. One star. I will file another complaint shortly - stay tuned. **************** I have been using Sharp Purifier & Humidifier for the past 4 months. I had a positive experience with Sharp humidifiers before, so decided to pay top dollar ($350) for this product back in October 2021. Unfortunately, it did not live up to my expectations. The first issue I encountered was that it was not powerful enough to cover the promised 341 sq. ft. I would say it can purify up to ~200 sq. ft. and that only becomes possible if you run it on max settings (which creates some noise vs. auto mode and consumes more energy). With a humidifier, there is no setting to step it up, so I did not really notice running the humidifier improving humidity in the room by more than a couple of percentage points. Most recently, however, I noticed a strong stale smell coming out of it when the humidifier was on. As you can see in the attached pictures, that was a mold that bred inside and was spreading around the room. I did notice that water was always leaking from the reservoir inside the humidifier, but I thought that was by design and had no idea it would breed so much mold inside. Bottom line, two starts for (1) auto-detection of odors (indicator lits up and purifier switches to power mode) and (2) possibility to detach water reservoir and humidifier wheel so I can still use the machine as a purifier without being exposed to the mold. Good luck with similar products from Chinese no-name producers!

Had to return the product. Purchased it brand new yet the air quality sensor is defective. Every morning when I turn it on it would sense extremely polluted air even though the air is perfectly clean. And yet later when I’m cooking food and the room smells like food it detects nothing.