COWAY Air Purifiers for Home Up to 1,748 ft², HEPA Filter for Smoke, Allergies, Pet Dander, Odor, Air Quality Monitor, Auto & Eco Mode, Timer, Filter Indicator, 3yr Warranty, Airmega 200M White

this is a very nice air cleaner. I really like the settings so that it will turn itself off after a few hours. it cleans a big room well and is super quiet.

Noticeably cleaner, fresher air. Easy to change filters and clean out the sensor compartment. Nice soothing white noise.

I first used this air purifier in my child’s room. My child has seasonal allergies, and after using this air purifier, the allergy symptoms definitely improved, and the air in the room feels fresher. I liked the Coway airmega purifier so much that I replaced the previous one in the living room with a Coway model. Since then, the air quality in the entire house has improved. One of the best features is Eco Mode. When we’re out or when there’s no one home, I leave it running in Eco Mode, and it keeps the air quality great all day without wasting energy. After a day out, I come home to fresh, clean air. I’m really happy with the results. Replacing the filter is easy, and the noise is minimal, so it doesn’t disturb me even in the living room. I highly recommend this air purifier for anyone sensitive to allergies or dust! It’s not only great in performance, but the design is sleek and fits well with the decor of the house

I didn't know this had an ionizer feature. I've read conflicting things about this - some have said that it still runs even if not activated, others have said it is not functioning at all unless activated. Perhaps I am too suggestible, but those few that have said it still functions and what they have said it has been enough to make me unsatisfied with my purchase. I do like the little machine, really, but I'd prefer it just didn't even have that feature. The question is enough to bother me. No matter what I read saying it's no big deal, I'm still uncomfortable. I have let this thing run in a larger space, no problem, and it tends to bring me comfort that it is running and reducing pollutants. In a small bedroom, however- I tried it one night and woke up with a "dry" feeling throat, and mouth, differently than I normally might (dryness it not uncommon, but this was different...). I am concerned with the outgassing from the materials of the machine in such a tight space. My issue may not be limited to this specific item, but all air purifiers. I would love to find one that doesn't use so much plastic... For what it is, I would say it is a good little air purifier. For me, I just need something else. I am returning it - something I feel really bad for because of the waste, but I just can't be comfortable with it right now.

This air filter works really well. It's a little loud but keeps the room smelling great. I originally tried a few different machines and this one is the best of the bunch.

This air purifier has an excellent sound profile. At the middle 2 setting, it makes a gentle low-pitch whooshing noise, which is basically perfect for the volume of air it's pushing. I would go so far to say it's a pleasing sound in a bedroom or an office. At the low 1 setting, it's essentially silent from 4 feet away. By comparison, my evaporative humidifier is considerably louder at its middle setting. Most air purifiers in this price range and size class perform similarly because they use HEPA filters and have similar airflow rates. Thus, I believe the sound of the purifier becomes the most important differentiating feature. The sound of the thing is what you're actually dealing with everyday. Before this, I owned the Blueair 311i Max, and its fan noise at the medium setting was higher pitched and thus more annoying than the Coway's. In the Blueair, you could hear a pitchy electric motor noise, while that sound is completely absent in the Coway. I'm sensitive to high pitch noises, and I can't hear anything high-pitched from the Coway. I use this air purifier in the simplest way possible. I put it on the 2 setting and leave it untouched. The operation of this product is super simple. Popping out the pre-filter for occasional vacuuming is easy. Highly recommend this air purifier. EDIT: March 2026 update, I've been using this for almost 3 years, and it's still working the same as new with regular filter changes. I've also added air quality monitors to my home, and the room this sits in has measurably better air quality when I'm cooking or when outdoor air quality drops. This air purifier has been performing objectively well in my home.

Does an excellent job and has helped considerably.

I have used this product for some time now and run it daily. Filters seems to last a long time and the purifier does a good job at cleaning out impure air within my room. It will light up and let you know the quality of air around you which is nice!

This is a great air purifier. I did my research and found that the cheap ones don’t last very long, but this one seems like very high quality with great independent third party reviews. Filters last a very long tim and can be found for reasonable prices. We are experiencing extremely high levels of smoke for weeks of the summer due to Forrest fires. This purifier completely removes any hint of smoke from my entire home. My house is 1500 sq/ft, larger than what this is rated for, but it works great. I usually use it on power level 2 and it is a very reasonable volume. Level 3 is loud, but moves a lot of air, so it’s great for when your trying to remove a problem. This has dramatically reduced the build up of dust on surfaces in our home, and reduced my headaches during the Forrest fire season. I’ve told family member about it and they went out and bought one too. I highly recommend it.

I spent an entire day researching air purifiers, and this one seemed to be the best choice between cost, function, size, and noise level. As someone who is sensitive to noise, I am ecstatic that the lowest setting is literally whisper quiet. The middle setting is noticeable but if you have headphones in, or even just a TV on, you won't hear it. The highest setting however is louder and I have to put in earplugs or leave the room. I also appreciate the auto-setting and saw it kick in the other day automatically so I know it actually works (when I first turned it on, it just stayed in the lowest setting on auto, but a week later the auto setting started switching itself) Also my research said that Coway uses the same filter for both this and their other model, so I'm not as worried about getting replacement filters in the future. It doesn't seem like a super proprietary thing you can ONLY get from them.

This air purifier has worked really well for me. It runs quietly, even on higher settings, and I noticed a clear improvement in my allergies after a few days of use. My apartment smells fresh all the time now, and it's been especially helpful during wildfire season—it's handled the smoke better than I expected. The filter indicator is a nice touch, and the build quality feels solid. Definitely one of the more useful things I’ve bought lately.

The Coway Airmega does the job, and by all accounts is good at air filtering. The good: For being a pretty small unit it has seemingly high filtration capacity, and if that's your main concern (pure ability to filter), then its a good option. On top of that, the replacement filter prices are pretty reasonable. The bad: I don't know what kind of AQI monitor it has in it, but if its supposed to monitor PM2.5, it's terrible at it. I immediately turned the sensitivity on this all the way up, and it will still kick in well after another air purifier I own. I wouldn't expect it to reliably kick in / turn up past the lowest setting, before 20 ug/m3 PM2.5. I pretty much rely on external AQI sensors and set the speed on this purifier manually. Maybe the AQI monitor in my unit is faulty, not sure. Other than that, the highest setting is really loud, but I suppose that's to be expected. All-in-all, I think for the price, it's a decent purifier. I have an Alen 45i that I think is better, but that comes in at 2x the price for the purifier and filter replacements, so this purifier is a lot better at filtering air per dollar.

This is a larger sized air filtration unit. It was comical when it was delivered to my sister as a gift and she saw it. Her r4esponse was wow...it is big haha. Well, it really isn't but she had a small air filtration that gave her nothing but problems and error messages. This unit is quiet, very efficient and fast to clean the air according to her. While it is large, she loves it. The warranty is excellent as well. I wanted her to have a great unit as she has terrible allergies and this air filtration unit by Conway Airmega 200m is perfect.