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

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

This product is definitely worth the money. It keeps the air in my home so clean, it is truly exceeding my expectations. As the weather shifted into spring, the pollen has been a bugger but step into my home and my surfaces are pollen free and nearly dust free. I had a bit of a musty smell in one of my closets and set this up in there and within a matter of a few hours, the smell was completely gone and has stayed gone. It is easy to use, built well and makes little to no noise (except when turned to the highest setting which I only use when frying something). Being that it is pretty compact and very lightweight, It is easy to move around the house. I would definitely purchase this product again.

I was planning to buy a purifier to help with the pollen and food smells and chose this model. It has worked very well for a 2 bedroom apartment. Its not too big, not too small, so I keep it next to the dining table and the system is set to Auto or Eco. Both detect air quality and adjust the fan speed accordingly. In terms of noise levels, I agree with most reviewers that it’s very quiet on low settings; high setting being comparable to the noise a kitchen extractor makes. Allergies and sneezing are less in these few weeks, and the smell of food definitely does not linger as long as before. In a 2-3 hours it’s basically gone. I hope to keep updating as I go but I can already tell this one is a keeper.

I’m lucky enough to walk through my urban environment without any chemical or scent sensitivities. But the HEPA filter in these Coway units are so chemical smelling that I immediately get a headache and nausea from them. It takes a long time of running the unit for the scent to dissipate. The Wirecutter review mentions this horrible, caustic scent but says it’s a resolved problem. It is not. Coway even mentions it in their FAQ. They know it’s a problem. I emailed and asked for a replacement filter because of Wirecutter’s assertion that it was a thing of the past, so surely I just got an old filter? Coway will not send you a new filter, they just tell you to run it in a room with a window open (so if it’s the middle of winter or the height of summer, you have to wait for spring or fall?). For context: I bought one unit, the one with the grid face, in September 2024, when it was 113°F in Arizona and it came with a toxic off-gassing filter. I left it outside for a week and then braved running it inside until the smell dissipated (obviously, one cannot open a window in Arizona in the summer, it doesn’t go below 100°F at any point in the day or night for many months at a time). It was a long 5 days of putting up with that smell. I ordered another unit in October, this time the other style that looks like an iPod shuffle face. Again, the filter smells noxious, and gives me a headache. Upshot: I will not be buying replacement filters directly from Coway, luckily there are lots of third-party offerings out there. Coway KNOWS this is a problem and doesn’t seem interested in solving it, despite making a product promising to make your environment less, not more, unhealthy. Wirecutter has dropped the ball by suggesting it’s no longer an issue. If, like me, you don’t have a million spare rooms to run an off-gassing air polluter behind a closed door with a window open until it converts to an air-cleaner, I’d strongly suggest purchasing from another brand. Update: I got another Coway Airmega. I wanted one for my bedroom. I’m jealous of the people who seem to be getting filters without the smell problem, because it happened again with this unit. It smells like you’ve walked into a cheap carpet warehouse where they also happen to be storing slightly burned sneakers. I’ve never experienced that with the HEPA filters for my AC or any of my vacuums, it’s a Coway specific thing. It’s also mentioned in many reviews if you search here. It’s bad and it lasts for days, over 7 days for the smell to lessen this time. Once that’s over and you’ve just gone ahead and breathed in all those noxious fumes, the unit works great! The auto function is awesome, it really reacts to things that kick up dust, like if I shake out the pet bed or scoop cat litter, sending the unit into high mode for a few seconds in response. When it’s on speed one, which it is most of the time on auto-mode, it’s almost completely silent. I like that I can turn off the large blue air quality indicator light, but why in the world don’t the two green lights that indicate speed also turn off with it? The unit is pretty far from my bed so it doesn’t bother me at night, but they are really bright. I’ll get my replacement filters from someone else, because I’m not going through that awful sick feeling of off-gassing the Coway brand filters again, but I do like the units and how they function a lot.

I love Coway Purifiers. While we were having our kitchen renovated, a friend offered to let us borrow her Coway purifier to handle the dust and odors. We set up the Coway purifier same day as the painters were spraying our kitchen cabinets. Even though the painters encircled our kitchen in plastic sheets, the odor was very strong. Within a 1/2 hour after the painters left, the odor was gone! It kept the dust way down as well. We ordered our own Coway Purifier the next day. This particular model covers 3 times the square footage as another model and doesn't cost that much more.

It is doing a great job. I also brought the upgrade filters. A lot better. Helps make him breath better

Very good small unit. Circulates air as well as eliminating orders. No spine in electric bill indoors of its high usage in my home. You hear it but it is not excessive or annoying. Going on second year with out issue. Easy to clean/change filter. Recommended.

As with any NY Times praised product, these devices are priced based on hype. It’s a low cost, cheaply made, cheaply sourced parts, air filter. You can find a teardown on GitHub that explains the low quality air sensor used, downgraded motor (used to use Panasonic motor, now some alternative is used). It’s fairly quiet in low/med modes, it vibrates a lot in high speed, due to a wobbly fan, though is relatively easy to use. As others have mentioned, the most fragile part seems to be the washable mesh, which is a shame and it’s apparently hard to source a replacement, tbh. The Coway Canada site does not officially sells this model as of this purchase date in late 2023, so support and service is uncertain and people have complained about full replacement parts support for this model in Canada. The Coway.ca website does sell air filters for these models, so perhaps support may have improved, tbh. If I could go back, I’d chosen a Levoit or a commercial design of the Corsi-rosenthal box fan filter model, that supports the superior MERV13 generic filters. The only good thing about these cheap Coway air purifiers is that they seem quite popular, so hopefully we’ll keep getting compatible filters and OEM ones for a few years. Conclusion a cheaply made, cheap parts, relatively powerful, quiet air purifier, that gets the job done, but seems to be geolocked to the US for repair parts according to other owners. Buy it on sale, as cheap as possible or look for other designs/brands. Almost six months of usage, seems to be going strong. Updated to 4 stars. Air quality light seems to somewhat match my PMS5003 PM2.5 based Air Gradient air quality sensor readings, so built-in air quality sensor actually works.

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.

I was skeptical of air purifiers but recently did more research and decided to try one out. We have a huge Saint Bernard who tracks in a lot of dirt and all the surfaces in my home were getting so insanely dusty so I decided to see if an air purifier would help. I have a 2000+ square foot home and I'm pleasantly surprised at how much of a reduction in surface dust there is since using this air purifier. It's very quiet and sleek-looking. I keep it on automatic mode and the highest level is quite loud but it doesn't stay on high for very long and it doesn't bother us much. All in all, I'm very happy with this purchase and it's really made a huge difference in my home.

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.

Right from the start I noticed how much cleaner my room was. I live in a dusty area and was constantly cleaning dust off my furniture but that's now a thing of the past. The air in my room even smells cleaner. Some people have commented on the noise level at the highest setting but with the unit set to 'auto', the fan only switches to high speed when it senses the air is dirtier than usual, and then it only runs for a minute or two at that speed before switching to low speed again. I don't sleep well but it never wakes me up when it switches to high speed during the night. The only downside is that the control panel lights are far too bright for me at night, so I've had to cover them with a dark cloth, which isn't a big deal at all. It's just too bad that you can't turn the lights off and leave the unit running at the same time.