COWAY Air Purifier for Large Room Whole Home Up to 3,120ft², HEPA Filter for Smoke, Allergies, Pet Dander, Odor, App-Enabled, AQI, Smart Mode, Timer, 5yr Warranty, Airmega 400S Graphite

I have the 400S. The air purifier itself is great. Moves lots and lots of air on high. It's really quiet on low. Modern styling is awesome. The app is the opposite. It only halfway works. It appears like it will be an informative app for air quality and all that jazz. Well, you'll be sorely disappointed if you use android. Nothing works except some rudimentary controls. Maybe they will fix the app and all will be rainbows and unicorns. *update* The IOcare app has been updated several times since I posted my review. It works great. I think it's also worth mentioning that the S model features are only usable in the app. For instance you can't set a timer on the S model without the app. Not that this is a big deal to me, but I figured that some simple functions could still be set on the purifier itself without using the app...but that is not the case.

Not sure yet if rating is accurate, but first 24 hours going well. Purchased Tuesday and received Wednesday. Simple Setup with no assembly required. No noticeable sound on lower settings, and no smell some complained about. A little disappointed it is detecting no pollution, but when first turned on it did for about 5 minutes, and the air quality does seem improved over last 3 weeks since starting to run A/C constantly. I have to wonder about people complaining about a smell, especially burning plastic, if they stopped to read the flap on the box that says to remove the bags around the filters before operating.

This is the best household air filter I could ever imagine! It was easy to set up to Wi-Fi! I like that I can control the functions remotely from my iPhone. The user manual is very friendly to use. Maintenance is easy. Customer service is a phone call away! This is a well made product. The covers are easily removable to access the filters. There are indicator lights on the top that show the pre filter and the Max2 filter. These indicator lights let you know when maintenance is required. The cost may seem prohibitive — at first glance — but it’s worth the cost! Amazon allowed me to “pay it out” in a payment arrangement which suited me. The amount of dust the pre-filter captures is eye opening! I simply vacuum off the dust and replace the filter, the cover and hold the PreWash button to reset the filter indicator. The Max2 filter is supposed to last 12 months. The AIRMEGA is surprisingly quiet! I recommend this product to anyone that wants a whole house air filter that will exceed expectations.

Overall, I enjoy this filter quite a bit. I have a large dog (German Shepherd) that can make a room smell very much like dog, but this thing does a great job at eliminating the odors. I leave it in the same room as the dog during the day and it is amazing just how much it will suck up. Because of the amount the dog sheds I have to clean the pre-screen about once every 1-2 weeks, but it is worth it! When the dogs are playing it is cool to see the LED light change colors and react to them. My significant other is allergic to pet dander and this does wonders at cleaning the air so she is much more comfortable. The only thing I do not like is that I was never able to get the app to work, it is just terrible. Not too big of a problem other than the fact I paid more money for nothing.

This product is advertised to have WIFI connectivity and an app which notifies recommended filter changes, status and air quality. The unit is supposed to run automatically based on air quality. None of this appears to be true. The app doesn't work...it hangs while trying to configure the WIFI connection. Over 75% of the reviews for this app (over 200 reviews) are 1 star for the same issue I'm having. The "air quality sensor" appears to be an IR led pointed upward, which presumably gauges air quality by how much light is reflected back down to the sensor. We couldn't get the fan to speed up in "auto" mode with smoke or dust (we purchased the unit for pollen...which I doubt would even be detected). Top that off with all plastic construction, and I'm wondering why I paid over $600.00 for this thing. It does filter well and is quiet, but it's not automatic and has no WIFI connectivity nor functioning app. It's probably priced right at $200.00

First off this filter is very large and the filters within it are huge in comparison to other competitors (Detailing Honeywell AirGenius 4 / 5 , Honeywell HEPA HPA300, and Molekule below). Check out the overall measurements of the unit before ordering it - 15" by 15" by 23" tall. First off, this purifier is BIG, and has TWO LARGE HEPA / Charcoal filters on each side. The HEPA will remove 99%+ of air contaminates and the Charcoal will scrub any smell. Do you have dogs or live in an area with bad air quality? Get this! The only downside is that the filters need to be replaced once a year and typically around $120 for the full set, you dispose the old ones. But when it comes to health . . . just do it. I had "Cleanable" filters in the past such as the Honeywell AirGenius 4 & 5 , let me say when you have to do it 4 times a year, I rather just pay $120 for the set. It typically takes 45 minutes each time to clean the AirGenius and about 4-5 hours to dry. The Coway Airmega 400s purifier also has a fine mesh pre-filter on each side of the unit (before the main HEPA / Charcoal). It is VERY fine, and is meant to capture hair and other items (heavy dust). These do not need to be replaced, instead they are cleaned manually, some say just clean them with water using a garden hose . I would be very careful using a hose since the fine mesh could tear. Instead I would recommend wiping them down by hand with a paper towel to remove the fine debris then fill up a bath tub and swirl them around a few times, then let them pat them dry with a towel and let them air dry. I first had the Honeywell AirGenius 4's and 5's for a few years but decided to move away from them because of health concerns related to the ozone producing electrostatic filter. I've heard of respiratory problems and other issues arising from the ozone they produce, even the EPA recently released some documentation on electrostatic filters, so I decided to move to a Honeywell HEPA equivalent. Next I moved to the Honeywell True Clean HEPA HPA300 ($250 each), this unit is also very big with 3 HEPA filters (much smaller filters than the Conway but it has 3 of them instead of 2, and a large replaceable charcoal filter in front of the HEPAs. Although a great unit, I wanted more coverage instead of buying more of these. Consumer reports rates this their top 3 filters on the market, if you have a smaller apartment / condo and want to save some money, this one is great and the replacement filters are half the price (but a little less than 60% of the coverage at around 465 square feet - i'll explain soon why the Coway Airmega 400s should only only be rated at 780 square feet). Lastly I moved the Molekule setup ($800 each) , although a very attractive unit the pre-filter is TINY and got clogged all the time. The pre-filters on this thing vs. the Molekule are maybe 6 times the surface area and there is TWO pre-filters in here, so around 12 times the pre-filter surface area. The HEPA filter in the Molekule feels like a toy compared to the giant ones in this unit. The only advantage the Molekule has is that it contains a light killing coating on the filter activated by a UV light within the unit. If Coway added a UV filter post stage they will own this market. In regards to color unit in all the pictures i've seen show it black, this is not true, its a very attractive gray on all side, and black on the top and feet. The power of this unit is amazing, if you turn it up all the way IT IS LOUD, but at the lowest setting I don't really notice the unit, other items in my room make more noise. There is a big leap in power output and sound from level 1 to level 2. Technically there is 5 settings, sleep, level 1, level 2, level 3, and smart which will just move the settings around using the smart sensor within the unit. Does it clean the air? That should be the most important question! The air smelled smelled noticeably cleaner after using this unit for a day and coming home. If I cooked something right away my house didn't smell of the food, those charcoal filters work great! How may do you need? The 1560 square feet is not accurate, that is for 2 full air scrubs per hour. Technically the rating is suppose to be 4 full square footage air scrubs an hour per the CADR (Clean Air Delivery Rate standard). Then you need to think about if you sleep with your bedroom closed at night you won't get filtered air in there, or if you put the filter in your room the rest of the house will not get airflow. So really this should be rated for 765 square feet at 4 full air scrubs per hour, which is still better than anything on the market! Even the big HoneyWell unit is rated for 465 square feet, and the Molekule is rated for ~400 square feet when you normalize it. I'm going to put some recommendations below, but if you can only afford one unit, don't worry, even 2 full air scrubs an hour is AMAZING, better then most things out there. If you keep it running 24 hours a day your house will be VERY clean. My 2 cents in an IDEAL situation (if you have the extra money to spend): In single floor house I would get one for the master bedroom and one for a common area (living room, kitchen, dining room) as far away from the bedroom as possible. This will ensure while you are sleeping you get clean air and so does the rest of the house. If you have a two floor BIG house I would recommend getting 3 units with the 3rd unit being upstairs in a common area or in a kiddo rooms. 3 units should be good for 2300 - 4680 square feet if you take the full 4 full air scrubs into consideration or Conways 2 full air scrubs an hour. The only downside is the app setup, once working it is great on Apple. On Android it is a mess, I think they ported it over from Apple to Android and didn't finalize their QA. I was NOT successful adding this unit to my 5Ghz network. It doesn't let you select your wifi from a list, instead it grabs the last wifi you were connected to. So first thing, connect your iphone to your 2.4Ghz network. Then start the setup. One important thing I documented in my pictures is where the buttons are. They aren't the big round things on the left side needed to start the wifi paring, those are just indicators. You touch the screen printed area that i'm pointing at in the pictures in order to start the wifi pairing (Follow the app instructions). The unit is turned on by the big power button, but the level is controlled by the touch arc between the power button and the screen printed area of power level. You will probably get a API request timeout in the app the first time you set it up, just force kill the app (on your iphone X swipe up to pull up the app carousel, then swipe up again to force kill the app, on iphone 4 to 8 double touch your home bar to bring up the app carousel, then swipe up again to force kill the app). On the second reload everything will work great. Other then those small hangups on setup and getting the app working for the first time, it has been great. I think the app is pretty well laid out and informative. The app will tell you when to change your filters, what your air quality looks like over the last few hours / days / week, give you the ability to turn on and off the unit by a schedule, adjust the fan levels, order new filters, etc. If you don't use the app there is a lit up circle on the front of the unit that will tell you your current air quality and notify you if you need to clean or change your filters (clean pre filters or change once a year your HEPA / Charcoals). Coway if you want to own this market and steal the market share away from dyson, honeywell, and everyone else on the market, revise your app with better QA and a better UX, it is a little rough. Add a post UV filter. Add another step between fan level 1 and fan level 2. Get this in costco, best buy, or consumer reports. I highly recommend this unit. The prices now are currently amazing so there is no reason you shouldn't get this!

Positives: -Like the look, stylish -Lots of options. High speed is loud, but really moves air -Indicates of air quality (but see negative on this) -App control! (again, see negatives on this); but it does link in with Alexa no issue -Outer filter easily washable, all filters are easily accessible -Smart mode will run it based on air quality, but see negatives Negatives: -Air quality shows bad air every time unit is off for a short time before going back to good. -App needs work -App will force updates and not allow use until you update, constantly. Let me decide if I want to update. - Unit does not work with Wifi mesh systems (or my Orbi specifically). I had to setup a side network with lower protections just for this to connect. -Smart mode: Simply runs at lowest setting occasionally. I have to force it to run at night on higher settings. Smart mode could be better, or have options. Side note: Open the sides and take the plastic off the filters before using.

We bought this air purifier last year after we adopted two kittens, and we are very happy with it. On the plus side: large coverage area; excellent filtration; a smart mode which monitors the air quality and sets itself to the ideal fan power level to clean the air; the device is relatively small considering how much air it can clear; and the lights can be deactivated. On the negative side: there's no child-proof/pet-proof switch to prevent children or pets from changing the settings. Our cats occasionally jump on top of our air filter and inadvertently turn the lights on, turn the fan up to its highest setting, or just turn the device off. It would be nice if the Airmega had a toggle switch to activate/deactivate those buttons.

After an enormous amount of research, decided on this unit for a large open space ~1000’sq. Looks good, and feels of high build quality. This purifier moves a lot of air on its Max setting, and you can feel the air movement from several feet away. It blows upward, so not a breeze like from a fan, but a gentle air movement circles the room. It’s also very quiet. In low you cannot hear anything, even standing beside the purifier. Medium adds a little white noise to the room. High is noticeable, but not a nuisance. Pros: “Smart” air purifier boasting a high CADR, attractive unit, solid build quality, decent price, and dual 12-month HEPA filters make this a smart investment. Dual handles make this easily manoeuvrable. Cons: Filter availability. The App: The app is decent, not great. It’s basically a remote control (on/off, fan speed) with a custom schedule builder if you don’t want the Auto mode enabled. Offers filter life indicators/notifications as well as indicators/notifications when to wash the pre-filter filters. Air Quality Index (AQI) is not available in North America. If the 400S (“S” = Smart) is a few bucks more than the 400 (standard) then go for it… but consider how much more you are willing to spend for the ability to control fan speed and receive notifications on your phone. Filters are not easy to find, perhaps due to the popularity of HEPA in the age of COVID, …but like face masks, hand sanitizer, and toilet paper… I’d expect that to normalize soon. All said, we’re happy. Would not hesitate to purchase again.

Funciona perfecto! Se puede controlar con el app y tiene una funcionalidad Smart que automatiza todo el rollo. Excelente capacidad para cuartos grandes

Funciona bien y mejora la calidad del aire, solo un par de veces se me desconfiguró la wifi, lo malo es que la app no esta disponible en la store para México, por lo que se tiene que instalar y actualizar por fuera. Cuando lo compre seleccione la capacidad de 1560 sq y me llego de esa capacidad que es el modelo AIRMEGA 400S pero en el recibo y el pedido aparece como AIRMEGA 300S. Actualización julio 2022 Mejoraron mucho la aplicación, ya esta disponible para México y con la actualizaciones del purificador ya no se desconecta del wifi, lo recomiendo ampliamente. Lo único que pudieran mejorar es que al apagarlo y volverlo a encender mantuviera la última configuración. Actualizado Mayo 2023....Dejo de funcionar la skill de alexa en México, solo el día de hoy dejo de funcionar, muy mal que compres algo y de la noche a la mañana te quiten funcionalidad.

I love the look of this air purifier—in fact I selected it over many others specifically because it looks cool (graphite colour). So far it works wonderfully. It's easy to maintain and clean, it's quiet when you are sleeping. It detects even the slightest air impurities, like my cat wooshing by or my bedding being rustled on laundry day. Everyone who visits our house comments on how cool it looks. The only downfall is the expensive price-tag, but I have no regrets and would definitely recommend it to anyone who can afford it.

The reason I bought the air purifier is because the got a pet and read it would help with pet dander and dust. I see zero difference. The light turns red when the filter needs to be cleaned, but there’s barely any particles at all. I’m dusting/cleaning as often as I was prior to getting the purifier. Don’t waste your money.