WINIX AM90 Air Purifier for Home Large Room Up to 1740 Ft² in 1 Hr With Air Quality Monitor, True HEPA, Carbon Filter and Auto Mode, Captures Pet Allergies, Smoke, Dust
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Availability:
13 left in stock
Arrives
Oct 10 – Oct 12
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Color: Dove White
Features
- AHAM Verifide at 360 sq ft.: Also cleans rooms up to 1,740 sq ft in 1 hour (870 sq ft in 30 minutes, 580 sq ft in 20 minutes, 435 sq ft in 15 minutes)
- The Smarter Air Purifier: Control and monitor your unit anytime from anywhere by instantly accessing your unit with the Winix Smart App through the convenient WiFi feature
- Winix True HEPA: Captures 99.99%* of airborne allergens including pollen, dust, smoke, and pet dander, as small as 0.01 microns
- Washable Fine Mesh Pre-Filter: The first line of defense against the largest airborne particles found indoors
- Carbon Filter: Reduces VOCs and household odors from cooking, pets, and smoke. It is designed to catch airborne particles found indoors, which also helps prolong the True HEPA Filter life
- PlasmaWave Air Cleaning Technology
- Air Quality Indicator: Visual indicator displays real-time air quality in the room with LED lights
- Smart Sensors + Auto Mode: Built-in air quality sensor measures and adjusts fan speed in real-time
- Ultra-Quiet: Nearly silent on slowest speed
- Filter Replacement Indicator: When the filters need to be replaced, the Filter Replacement Indicator LED will illuminate
Description
AM90: Featuring a 4-stage air purification system, this unit removes 99.99% of airborne particles as small as 0.01 microns in size. Winix’s PlasmaWave Technology may help to reduce the presence of airborne pollutants, allergens, and impurities. The unit’s built-in Smart Sensors detect and monitor the quality of air in your environment and provides a visual representation of your current air quality. When in Auto Mode, the unit automatically adjusts fan speeds to ensure efficient and cost-effective cleaning. Sleep mode is automatically activated when the room is darkened, providing quiet, energy- efficient operation. The WiFi feature allows you to connect your air purifier to the Winix Smart App and monitor the air quality in your home, control your air purifier, and track filter life.
Product Dimensions : 15.1 x 8.7 x 23.5 inches; 16.5 pounds
Item model number : 1022-0214-00
Date First Available : November 23, 2018
Manufacturer : Winix
Best Sellers Rank: #1,360 in Home & Kitchen (See Top 100 in Home & Kitchen) #6 in HEPA Filter Air Purifiers
#6 in HEPA Filter Air Purifiers:
Customer Reviews: 4.6 4.6 out of 5 stars (32,165)
Power Source: electric
Control Method: Voice
Filter Type: HEPA
Floor Area: 360 square_feet
Noise Level: 27 db
Particle Retention Size: 0.01 micrometer
Wattage: 65 watts
Contaminant Filtration Capability: Broad Spectrum
Special Features: Programmable
Filter Class: HEPA
Brand Name: Winix
Model Number: 1022-0214-00
Global Trade Identification Number: 60
Number of Packs: 1
Unit Count: 1 Count
Manufacturer: Winix
Warranty Description: 2 year manufacturer
Included Components: Activated Carbon Filter, True Hepa Filter
Item Type Name: Air Purifier
Part Number: AM90
Item Dimensions D x W x H: 8.7"D x 15.1"W x 23.5"H
Item Weight: 16.5 pounds
Color: Dove White
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Oct 10 – Oct 12
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I've been looking for a new air purifier for almost a year now, doing research here and there trying to find a unit that meets all the requirments I'm looking for. I need a unit that's for a larger room, has an auto feature, has good priced replacement filters, and looks good to match my home decor. A recent 80,000 acre fire hastened my research due to the thick blanket of smoke that blanket the area (and still is) every morning. With all things considered, the Winix 5500-2 met all my requiements. The unit arrived promptly and unpackaging was an ease. I literally had it set up ans running in about 5 minutes. The body is a hard, matte black plastic that feels sturdy and durable. The front panel is easy to remove, and secures to the unit via a clever magnetic clasp that is secure, yet simple to remove to access your prefilter for bi weekly cleaning and hepa/carbon filter replacement. There are 3 filters in total, and they fit snugly inside the filter chamber, amd ate secured in with the prefilter that snaps firmly into place. The control panel at the top is intuituve and user friendly. The buttons are clearly marked and visual ques explain what each button does taking out any guesswork as to what they do. A stylish indicator light bar runs along the bottom of the control panel indicating the level of air cleanliness with a 3 color scheme...green for clean, orange for okay, and red for bad. You can manually run the machine on 4 fan settings, or choose auto mode and let the machine choose the settings based on the data colected from the sensor. This means hands off operation. There's a night mode that will set the fan to its lowest setting to cut down on noise, and also dim all lights on the panel. This night mode will set automatically if you have the auto mode set on the unit, a light sensor will detect (or not detect) any light in the room and go into night mode. A filter change indicator light also is on the control panel. According to what i've researched, the hepa filter should last approx 1 year. It also comes with a remote control with a battery preinstalled. I dont plan on using it, but if that's your thing, it's there. This is the quietest air purifier I've ever owned. On level 1, it's almost undetectable, and even on level 4 turbo mode, it's no louder than a standing floor fan on high. This was a very pleasant surprise. It cleans the air well. I'm currently using it in my 350 sq ft bedroom. I don't have the equipment to test it, but per their website I should be getting at least 4 air changes per hour which is the amount of air exchanges you need for allergies and serious air purification. I've had no smoke smell AT ALL in the bedroom when I run this with the door shut to the rest of the home and it was initially startling to walk from the bedroom into the rest of the home after the first night of using it. This unit has more than exceeded my expecations ans meets all the things I was looking for in an air purifier. I plan on purchasing 2 more of these when money permits for my combined kitchen/dining/living room area that totals 700 sq ft. I can place these at opposite sides of the area and get more than ample coverage. I would highly reccomend this unit. For the price and the feature list, this just can't be beat. The cost is low, the replacement filters don't cost an arm and a leg, it covers a large area, and you get a lot of features. 09/28/2019 2 years later and this machine is STILL going strong. Besides the occasional vacuuming of the pre filter and the yearly filter changes, I've had this guy quietly working away in the house keeping my air clean. Can definitely say at this point that it's a durable machine! 08/20/2020 3 years later and still working! I'm only posting this update because I find myself in ANOTHER horrible fire season for California, and I'm in a zone getting insane amounts of smoke. Besides regular cleanings on the pre filter, and my yearly change out of the hepa and carbon filter, not much else to report. I really hadnt expected this thing to last this long as I run it 24/7, often on its highest setting to get maximum results. I own 2 now, I bought another one last year to get more coverage throughout the house. I would highly recommend this until to anyone. 01/03/2022 I was buying a new filter today on here and remembered that I actually had a review for this product. I've owned this air purifier for 5 years now. I just added 2 more photos (should be the last 2 in my string of pictures) just to show that I STILL own this device. 5 years of literal CONSTANT USE. I've had it set on the 3rd setting, just 1 below it's highest setting, for nearly this entire time. I have absolute confidence stating that this is a solid piece of machinery. I'm actually shocked that this guy hasn't given up on me yet! If you're worried about durability, at least in my case, yes, this is a very durable air purifier. Winix created a home run product with this one. I think that this may be my FINAL update on the product (unless of course it survives for 10 years, in which case I may throw a party for the thing!) ***I also want to add to those who say this device produces harmful amounts of ozone. That's simply not true. You can go to the California Air Resource Board, specifically to the section under California Certified Air Cleaning Devices. This will show you a list of air purifiers that have been tested by the state and produce under 0.050 ppm of ozone. This device, and all others from Winix, are on the list. That means that this device is at, or below, the levels indicated as safe. Make sure when reading reviews you guys do your own follow up research on an item. It's insane the amount of bad information that's out there! Dont take anyones word, look up what they claim!***
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Reviewed in the United States on July 24, 2017 by Gino
Color: Polished Charcoal Gray
A really good air purifier with some unique features. In terms of noise, it is among the quietest at about 60 DB. Obviously there’s more noise the faster the fan spins, but in automatic mode, it senses the amount of gluten in the air and adjust the speed automatically which means most of the time it will be running at low speed unless there’s a lot of dust in the air. You can download an android or iOS app to control the fan speed and to see how much dust it is seeing in the air. You can also set it up for Alexa or Google Home to be able to control it through those devices. One need feature is being able to ask Alexa for a reading of air quality from the device. You can also enable an automatic sleep mode, which basically keeps the device on auto fan mode where it senses the amount of dust in the air during daylight, but when the device notices that the room is dark at night, it will put the fan speed to its slowest mode to ensure that there’s minimal noise during nighttime hours. Once the room is lit again and it is daylight the device will automatically switch to auto mode and if necessary, increase the fan speed to pull in more air if it detects an increased amount of dust. These are the main features of the device, but the other thing that I liked about it compared to similar models from other brands is that they say the standard filters it comes with should last 12 months where many other brands recommend changing filters after three months. This is probably because the HEPA filter that this device comes with is thicker at about 1 inch compared to what I have on other air purifiers filters that are generally 1/2 inch or less thick. I have not yet replaced my filters, but with an estimate of one year it should not be a substantial yearly cost because filter filters run around $20. And I say filters because as you can see in the images for the product, there are actually two separate filters that work together one is a white HEPA filter to filter out particles. The other one is a black carbon filter, which filter filters out smell smells. And holding both of those filters in place is a screen which is washable that is meant to capture, larger dust particles or pet hair before they hit the main filter filters. Overall, very satisfied with this device and the only thing I can’t really comment on is how long it will last as I’ve only recently started using it.
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Reviewed in the United States on March 10, 2026 by Chef Gene
Color: White
best for small living area or kitchen. Mom used it by turning it to full blast during cooking and it really helped with the cooking smell since our range hood fan is not very efficient. The active carbon filter is not for show. it’s also very efficient because of the sensor auto detects dust and organic smells. Super quiet 99% of the time when it’s on Auto. and only used between 4-11watts most of the time when it’s already clean. full blast uses about 56watts (measured with a smart plug). Getting a second unit so one is always at the kitchen area and one for the living room. just wait for the sale. first one paid full $180 and saw it on sale for $130 and bought it again. The filter replacement are also affordable about $30-35 for 2 sets on most of the 3rd party sellers. Each set probably can last about 4-6 months if you use it heavily 24/7 or a year if you only uses average 8 hours a day. for $130 and you can use apps to control and monitor filter lift span. that’s really a steal. Love the control and the buttons layout. and looks very simple and easy to use. when I say 99% of the time is super quiet. it’s almost inaudible when it’s already clean and also when it’s dark. it’s auto in sleep mode after a few minutes later it detects dark. well programmed and well thought of cheap smart air purifier. for Kitchen and cooking uses. definitely recommend get the green filter set which helps with smoke too and make sure set on full blast when cooking and leave it on for another 20-30 minutes after cooking then turn back to auto to save power and make the noise back to normal. your house won’t smell that much with this after cooking.
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Reviewed in the United States on June 20, 2026 by Dian
Color: White
I bought this air purifier because I only have the small ones, and I noticed that they couldn’t keep up with the severity of poor air quality when we have heavy wildfire smoke in our area. The unit itself is sleek, has easy to operate controls, and the white color matches my interior decor. The fan noise is very quiet even on High setting— it only gets loud when I use the Turbo feature. It has a faster Clean Air Delivery Rate (CADR) compared to my other air purifiers. Within a few minutes of running it on Medium or High, it cleans the air in my apartment. The one thing I don’t like is the app— it gets laggy and sometimes unresponsive, so take note of that. I know it sounds excessive having so many air purifiers for a one bedroom apartment, but I’m very sensitive to poor air quality and I have frequent asthma attacks if I don’t run my air purifiers. I’m so happy with it, I bought a second WINIX 5530 of the same color so that I’ll keep that one in the living room along with the small air purifier. I also bought replacement filters to have at hand when I need to change them out.
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Reviewed in the United States on August 8, 2026 by Minoware
Color: White
Powerful and works great!!!.... AND NOW I WAS ABLE TO GET IT IN WHITE!!!!, to go better with my neutral tones decor!!! Took 2 minutes to open filters stick em in, turn it on, and connect my app. Winix for the win! Agonized and researched, and researched, and researched, before picking this purifier. I originally ordered in black, and saw the next day it hadn't shipped yet and the white one (Model 5530), was now available, so I canceled before being charged, and ordered the white one...even though there had been none purchased yet and no reviews. It had recently came on the market (at least for Amazon) and I am so glad I went with it. It's so much nicer to look at then a big black box. BUT AGAIN.... I would have gone with the black anyhow, because of all of my research on air purifiers as far as testing and price point for the unit (as well as options/price for replacement filters.) THIS ONE CAME OUT ON TOP ALMOST EVERY TIME!! Powerful filtration and very quiet. The turbo is a little louder, but it fades into the background, and it's nice for me to fall asleep to, honestly. I don't even notice it, especially when the TV is on. I run mine with Plasma Wave and on turbo, full time, but I use the app to set the time/schedule to go to medium overnight, after I've fallen asleep, because I like the quiet noise to fall asleep to... and then it automatically turns back on turbo at the set time for the morning. FANTASTIC! Note: Because I'm on a budget, I already ordered a 2 pack of aftermarket filters to have on hand, but I can tell you the honeycomb carbon pelleted aftermarket ones, are filled a little too much. I'm a little concerned with what will happen regarding air flow because of this, not to mention, who knows if the carbon pellets and HEPA filter, are really of the same quality...but time will tell in the future. THE ACTUAL WINIX BRAND FILTERS THOUGH ARE WONDERFUL!! The only difference between the 5520 and the 5530 is the 5530 is white. I love it! Ps. For those afraid of the Plasma Wave / ion thing... You can't even tell it's on. I have asthma, and I'm extremely sensitive to those older machines that produced ions, but this one is a different kind of thing. It's double bonded or something like that, and there are ZERO EFFECTS OR ODORS from it. Do some research on the Plasma Wave technology, it's nothing like a typical ionizer, nor the purifiers of old days before we knew better, or anything of the such. Don't let anyone else fool you. ALSO, IF YOU DON'T WANT IT, THERE'S A BUTTON JUST TO LEAVE IT OFF....BUT, I SUGGEST USING IT!!! IT'S "PART" OF THE TECHNOLOGY AS TO WHY THE PURIFIER WORKS SO WELL. Great air purifier, I highly recommend!
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Reviewed in the United States on June 11, 2026 by ARI
** 3-week update ** After a few weeks a clicking noise developed in the fan when running on the sleep (lowest) speed. Looking at the fan it appears there maybe an imbalance that over the weeks developed into a motor shaft tapping. Make sure to inspect your unit for a balanced fan. I just issued a replacement on the 5500-2 so we'll see what happens. ** Original ** I spent weeks comparing units on Amazon and elsewhere. I didn't want to spent > 200 on an overbuilt fan, or be stuck buying overpriced filters. I ended up buying the Winix 5500-2 and Renpho AP002 and first impressions with the two units are that they both appear well built, quiet, and have the automatic mode I really wanted. TL;DR; Winix 5300-2 - Quieter w/Smarter hands off Automatic technology & Ionizer - Set and Forget! Winix 5500-2 - Identical in Black w/Remote & washable carbon filter Renpho AP001 - Incredible unit, Amazing filters, Low cost ownership! Renpho AP002 - Almost identical, slightly more air volume FILTERS The Renpho filter has a price and feature advantage over the Winix. Both units have H13 Hepa filters, both have the honeycomb active carbon filters (for capturing VOC), and both have a washable pre-filters for catching large particles. The Renpho however has 2 bonus layers, a microbial coating on the Hepa filter, and an additional charcoal filter sitting before the carbon filter to collect larger particles. The Winix does claim the active carbon filter is washable - Renpho does not make this claim, however both appear similar so it maybe purely marketing. The Renpho filter is shorter and fatter - if you ran the numbers they both likely have similar surface area, thought the Winix is CADR rated for 360 sqr/ft while the Renpho is 330 sqr/ft. They are close. Renpho OEM filters sell for $25 for a full replacement. Winix OEM filters sell for $50 for a full replacement. Renpo claims the filter should be changed every 6 months, Winix claims every 12. I assume this is reflected in their price strategy, however since the filters are so similar, I doubt both claims can be true - and this all depends on how dirty your air is! So cost of ownership is likely less with the Renpho. AIR IONIZATION The Winix comes with an Ionizer (called Plasmawave) and Renpho does NOT. The Ionizer charges any particles passing through the unit so they are heavier and will float to the ground and out of air. If you're concerned about Ozone gasses, then this is a feature you can disable and is not a feature on the Renpho. SOUND This is a real issue for me - I am sensitive to sound and like the home quiet at night. Deciding on a unit for my children makes this even more important, and I don't want to force them into a white machine for air filtration. In Sleep mode the Winix is significantly more quiet at (advertised) 26dB where the Renpho is at 35dB. With the Winix 10ft from the bed I can just barely hear it. The Renpho is noticable but not "loud". The Winix appears to have 5 speed modes, Sleep, Low, Med, High, and Turbo. The Renpho has just 3 modes, Low, Med, High, with Sleep mode being the Low mode with lights off. Here's the rub however - outside of Sleep mode, the Winix sounds "louder" having a higher pitched whine while the Renpho is more of a hum. If I was going to just set this on High in a corner and forget it, then Renpho is the winner. For a quiet bedroom the Winix appears the winner. AUTOMATIC MODE This was a huge feature for me and the Winix is a much "smarter" unit. Both units have a similar Automatic feature, sensing the air, bringing the fan speed up or down according to the readings. Both have light(s) indicating the current air quality reading. The Winix however had a light sensor that, when the unit is in Automatic mode, will place the unit in Sleep mode when the lights go out (for more than 1 min). In the morning the unit goes back into Automatic mode. This is huge if you appreciate how quiet the unit is. You can set the Winix to Automatic mode and not touch it until your next filter cleaning. If you wish to use the Sleep mode on the Renpho you will need to push the Speed button to cycle through the speed options back to Sleep - and then again in the morning cycle back to Auto. In reality you maybe better covering the lights with black tape and leaving it in Auto or just leave it in Sleep mode permanently. REMOTE Winix has one, Renpho not - for my needs this is a non-issue. CHILD LOCK Renpho has one, Winix does not - this is a great feature if young kids are around! APPEARANCE Personally I think the Winix looks clean, modern, and the black color blends well into a corner near furniture. The Renpho AP002 like the Renpho AP001 have their signature funky look which is fine but not as refined. It's an air purifier, so who cares, but it is also a visible piece of equipment in your home. For us the Winix seems more appropriate for a bedroom, the Renpho for a living room. Winix higher cost of ownership justified by the features and sound levels, Renpho for lower ownership cost. If the Renpho unit was QUIETER (ahem - hint hint Renpho) then I would just go that route - save on upfront and ownership cost. SIMILAR MODELS The Winix 5300-2 and Winix 5500-2 are the exact same physical unit in different colors with different filters. The 5300 is gray, the 5500 is black. Only the 5500 has a remote. The 5500 has their "advanced" AOC Washable Active Carbon filter, while the 5300 has a disposable active carbon. The 5300 Hepa filter is slightly thicker (good) and you get 4 disposable filters with each replacement. If you buy the 5500 and don't like the washable filter it comes with you can buy the 5300 replacement pack and use them instead. For $23 more we went with the Winix 5500-2 to test the AOC filter, and for the black aesthetic. Currently you can get the 5300-2 for $129 (Amazon) and when I purchased the Winix 5500-2 for $152 (now listed at $159 on Amazon). The Renpho AP001 (often found as RP-AP001 or AP-001) and Renpho AP002 are very similar products, both using the exact same filters, having different aesthetic designs, and with the AP002 having more airflow (for supposedly the same sound levels) and covering 30 sqr/ft more space. The AP001 has a dedicated Sleep button while the AP002 Sleep mode is the first option on the Speed cycle button - more daily button work for you. Currently the AP001 sells for $99 (Renpho direct) while the AP002 for $137 (Amazon). I bought the AP002 thinking the newer model maybe more quiet than advertised. If we get another Renpho it will be the AP001 for $37 bucks less.
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Reviewed in the United States on April 23, 2020 by David
Color: Black
The auto setting of this air purifier is good: it detects when the air is dirtier, indicates that with an orange or red light, and increases the fan speed accordingly. This happens when I run the filter in my kitchen and it reacts to the smoke from the stove or oven, even when it is not enough to see with your eyes. Sometimes the light changes to orange or red in the bedroom right after someone coughs or sneezes, so I think that indicates that it is probably cleaning the air of infectious particles breathed out by someone who is ill. Sometimes it indicates dirtier air and it is not obvious to me what it detected, but I trust it since it does detect things I know about like cooking smoke and sneezes. Most of the time it runs on the lowest and quietest setting (which is reasonably quiet), but runs higher when needed. It also detects the light in the room, so if it is dark at night, it runs an even quieter mode. My sister had bought one of these air purifiers for our elderly parents in California. I don't remember whether it was smoke from wildfires or Covid that first motivated my sister to buy the air purifier, but it has been good for both of those health hazards. So when I visited them, I had seen how the auto-detection worked and when I had vacuumed out the filter for them, so I could see that cleaning and changing the filters was easy. I first bought a unit for myself in 2023 when smoke from wildfires in Canada blew down and made the air in Chicago hazy and orangish and beaches were closed because the air quality index was over 100 and was bad enough that people were told to stay inside. Our HVAC system has 4" MERV 13 filters, but I felt that smoke was still getting in whenever we opened our doors and the HVAC filters were probably not filtering enough to completely clean the air. I also have pretty bad seasonable allergies, so this unit is good for cleaning the pollen out of the air in my house. Just a couple months after I bought the unit for my own house, I sent another unit to my adult child in DC when the smoke from Canada blew into DC. They liked it so much that this year they bought one for their workplace office after they had to start working part-time in-the-office rather than fully remotely as they had done when they were hired during the height of the pandemic. The unit is a bit heavy at 17 lbs. So I got tired of taking it up and down the stairs from my bedroom to the dining room or kitchen and I bought this second unit for our household. It has a different style of activated charcoal filter that has gravel-sized pieces of charcoal in a plastic cage instead of the black fiber filter that the previous units used. The new charcoal filter is supposed to last longer than the fiber filter so I think it is better. I found that generic filer replacements of the HEPA filter and the charcoal filters fit my first unit just fine. I haven't looked for replacements for the newer type of charcoal filter yet.
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Reviewed in the United States on May 28, 2025 by D. Burton
Compared to Winix U300 Signature, this is more affordable, it is also quieter with more practical user panel, it has a more convenient magnetically-held front cover, and its PlasmaWave generator is completely silent whereas U300 has a bit of constant ticking noise going on. The only benefit the U300 has is it has a bit nicer glossy outside (but curved body wastes space and the plastic feels kinda less sturdy) and 99.99% HEPA filter, whereas the Winix 5500-2 has a quite utilitarian plastic body that optimizes space usage and comes with a 99.97% HEPA filter. The Winix 5500-2 looks like it was engineered and designed with function as most important. No space is wasted since body shapes around the air filters without any design accents. Airflow is optimized by taking air in not just from the sides but also the front. The fan is even quieter by a good amount and seems to be able to blow more air at high setting than the more expensive U300, and most importantly, the sound signature is VERY PLEASANT at fan speeds 1-3 (4 is quite loud). It also comes with remote like their Signature series. Fan speed 1: Silent from 1-2 feet for a 30 year old, quite limited airflow, feels like ~10% of airflow max, I think only useful for super small rooms or if you just need this kind of almost complete silence to sleep. Fan speed 2: Silent from 15 feet away, very very quiet and relaxing whoosh from 5 feet away, feels like 25% of airflow max, I could sleep just fine with this 3-4 feet away from me. Fan speed 3: Very pleasant hum from 5 feet away, would keep me awake from 2-4 feet, feels like 35-40% of airflow max, could sleep just fine with this 5-6 feet away from me. This is definitely the sweet spot for 24/7 use unless you got a very large room. To reduce noise while sleeping, you can position it towards your feet while laying down (vs. positioning to left or right of you while laying down), so less noise directly reaches your ears for the same given distance. Fan speed 4: Annoying volume 1-6 feet away but still good sound signature, 7-12 feet away or so I could probably phase it out of my mind for the entire day for a long time, but would not be able to sleep continuously if this was in my bedroom. The amount of airflow is really great considering how little noise is made at fan speed 4, I believe the fan motor may be almost totally silent, and 90-95% of what you hear is just the sound of air moving with very little obstructions. A lot of engineering goes into improving air purifier acoustics up to this point, we won't see significantly better noise/airflow ratio in tower style air purifiers for a very long time. My only real complaint is there could be 2-3 more fan speeds in between fan speeds 3 and 4, and to be honest, I don't think it's right for them to call fan speed 4 "Turbo", it is like a polite turbo sound a 30 year old could actually put up with all day long if positioned ~10+ feet away. Tip: Almost all HEPA air purifiers under $500 don't attempt to have zero air leakage. If you don't want any particles bypassing the filter, you have to do something like use gaffer tape (designed to be removed without leaving permanent residue) to tape up the gap between the perimeter of the carbon air filter and the face of the air purifier after you remove the front cover and remove the pre-filter. This is very easy to do since the face of the air purifier is along the same plane of the carbon air filter, just takes four long pieces of gaffer tape and you eliminate, or almost eliminate, particles going around the HEPA filter. If you do this and like to run at fan speed 4 continuously, make sure to clean the pre-filter once every few weeks or as needed and change the HEPA filters annually or as needed, otherwise you may overwork the fan motor and shorten its lifespan. Don't worry about that issue with fan speeds 1-3, these are significantly slower fan speeds that can deal with any amount of clogged filters and lack of filter bypassing.
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Reviewed in the United States on July 17, 2017 by Garlond