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Coway

COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart, 3yr Warranty, Airmega 250S Wifi

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Availability: In Stock.
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Arrives Sunday, Sep 6
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Style: Airmega 250S


Features

  • [Coverage] Optimized to clean spaces up to 930 sq. ft. in 30 minutes or up to 1,860 sq. ft. in 60 minutes
  • [HyperCaptive Filtration System] Dynamic combination of a washable pre-filter, activated carbon filter, and HEPA Filter effectively reduces 99.97% of 0.3 micron particles in the air, including pollen, pollutants, and other allergens. It also reduces 99% of volatile organic compounds and odor.
  • [Air Quality Indicator] 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed.
  • [Rapid Mode] When air quality is in need of a boost, Rapid Mode is activated to circulate at maximum power until your air is clean.

Description

1.Airmega Air Purifiers, tested by KCL(Korea Conformity Laboratories), demonstrate effective capture of 0.01㎛ ultra-fine particles and allergens according to Korea Air Cleaning Association standards (SPS-KACA Modified). Performance may vary in your environment. 2.Our HEPA filter complies with IEST-RP-CC007 standards at speed level 1 as tested by SGS (Société Générale de Surveillance). SGS's test report only reflects SGS's evaluation of the sample and does not reflect the evaluation of the batch of goods from which the sample was taken. 3.Tested for acetic acid reduction rate by KCL(Korea Conformity Laboratories) in a chamber under JEM 1467: 2015 conditions for 60 minutes. Results may vary in different environments. 4.Activated Carbon Filter was tested by KCL(Korea Conformity Laboratories) and shown to reduce various harmful gases and odors within 30 minutes, including key VOCs and pollutants. Results are based on lab conditions and may differ in actual use. 5.Allergen filter media was tested by Nichinichi Pharmaceutical to measure allergen concentration using ELISA over a 24-hour reaction period. The test reflects the filter media's performance under laboratory conditions and results may vary in actual product usage environments. 6.Tested reduction rate of ammonia and hydrogen sulfide for 30 minutes under EL608:2023 condition by KCL(Korea Conformity Laboratories). Results may vary in different environments. 7. Tested by Intertek, reduction rates of Naphthalene, Sulfur Dioxide, and Nitrogen Dioxide were tested following JEM-1467:2015 standards. Actual performance may vary depending on the living environment. 9.Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA. The test was conducted with Methyl mercaptan, Isovaleraldehyde, Isovaleric acid in a 1.0±0.1 m3 chamber with a test time of 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of over 99.5% was achieved. Results may vary depending on the actual usage environment. 10.Tested by the Guangzhou Institute of Microbiology, exposed the filter media to protein solutions for 24 hours under ISO 4333-2022 standard. The results showed strong reduction performance: >99.79% for pollen, >99.60% for dog allergen, >99.90% for cat allergen, and >99.80% for dust mites matter allergen. Actual results may vary depending on room size, airflow, and pollutant levels. 11.Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA. The test was conducted in a 1.0±0.1 m³ chamber for 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of >99.5% was achieved for Formaldehyde and Toluene in 60 minutes. Results may vary depending on the actual usage environment. 12.Tested by Intertek, the test was conducted in a 1.0 m³ chamber for 120 minutes resulting a 99.9% removal rate on sulfur dioxide, nitrogen dioxide, and naphthalene. Results may vary depending on the actual usage environment.

Color: Warm Gray


Brand: Coway


Product Dimensions: 8.3"D x 18.5"W x 19.7"H


Power Source: Corded Electric


Item Weight: 20.5 pounds


Power Source: Corded Electric


Control Method: App, Voice


Filter Type: HEPA Filter, Carbon Filter, Washable Pre-Filter


Floor Area: 1860 square_feet


Noise Level: 22 db


Particle Retention Size: 0.3 micron


Wattage: 64 watts


Contaminant Filtration Capability: Dust, Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs)


Special Features: Air Quality Monitor, Filter Life Indicator, Smart Mode, Wi-Fi Enabled


Filter Class: HEPA, Activated Carbon, Pre-Filter


Item Dimensions D x W x H: 8.3"D x 18.5"W x 19.7"H


Item Weight: 20.5 pounds


Color: Warm Gray


Brand Name: Coway


Model Number: AP-1720G


UPC: 826439000394


Unit Count: 1 Count


Manufacturer: Coway


Warranty Description: 3 year manufacturer's limited warranty


Included Components: Air Purifier, Filter Set, User Manual


Item Type Name: HEPA Filter Air Purifier


Part Number: Airmega 250S


Specification Met: CARB Certified, ETL Certified


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 6

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.

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Top Amazon Reviews

    • Does wonders for cooking
Style: Airmega 250S
Review Image by Brooklyn Alex
Review Image by Brooklyn Alex
Pros: - Does a wonderful job at clearing the air. My apartment does not have a range hood for evacuating cooking smoke, and would often create a haze in my apartment. This powerhouse will recognize the bad air quality quickly and scrub out all the smoke caused by cooking. I purchased a Dyson in parallel to see which I would rather keep, and the 250s actually kept purifying after the Dyson noted “good” air quality. I could tell there was still a bit of smoke and cooking odor, and couldn’t understand why the Dyson didn’t recognize what this unit did. - Great coverage for a unit this size. I previously looked at smaller units to tuck away out of sight, but would have needed 3-4 to cover the area this unit does. - The fan doesn’t have a buzzing of mechanical sound to it, more of a “whooshing” wind, so it’s not offensive when running. - Personally, I love the look of it. I had a Dyson purifier as well (returned it to keep this unit) and it didn’t blend into any design style; this one doesn’t draw attention to itself. - Love the AQI LED on top. Easy to understand: blue (good) fan level 1, green (moderate) and yellow (unhealthy) fan level 2, and red (very unhealthy) fan level 3. - Easy pre-filter cleaning and filter replacement from the hinging front. Cons: - Had a few days of an error with the app connecting (invalid MAC address), but eventually resolved itself (unit is still usable without the app) - App is somewhat less user friendly than say a dyson app - I don’t get any history of PM2.5 pollutants, but have it for PM10 - Fan speed on levels 2 and 3 can be noisy while trying to watch tv/movie or listening to music if the unit is close by (I would love if moderate air quality had a fan speed of 1.5) - No option to silence the chimes, which occur when you change settings on the device or when it moves into a new schedule block ... show more
Reviewed in the United States on March 31, 2022 by Brooklyn Alex
    • Robust and well rounded air purifier.
Style: Airmega 250S
Review Image by Zac
Review Image by Zac
Review Image by Zac
I purchased this to replace my Winix air purifier I purchased in 2020. It was a new model when I purchased it but already has the filters discontinued. Instead of buying knock off filters I did my research on who makes air purifiers built to last. The popular Coway models have been around for 8+ years and they still sell them. I’ve been very pleased with this machine. What I like: The app! Some people report troubles connecting it to their home network. I’ve had no issues, I use Eero and it setup the first try flawlessly. Design: it’s much better to look at than any other air purifier I considered especially in its price range. Scheduler: I like that I can tell it to go to sleep at a set time every night and to turn the lights off. As well as when I’d like it to switch back to smart mode and put the lights back on. Very convenient. Filter and prefilter: the filters seem very durable and high quality. They are easy to change out too. I like the app has a life indicator on it too. The prefilter has a nice slide in mechanism and you can change how frequently you want to be reminded to clean it. What I don’t like: Noise: I read these are quieter than the older Coway models but it’s not dead silent. If on 2-3 it’s pretty loud but granted it’s pushing a lot of air. When the machine goes to sleep sometimes the slow rotation makes a buzz that’s louder than it running normally. Sleep light sensor: it’s really finicky. Not sure why but it’ll randomly sleep when the light hasn’t changed. Overall I’m happy to have switched to Coway. I’m happy I got the app enabled version. If you like scheduling it or just like to see what your air quality (pm 2.5 and 10) are. It’s also handy. I expect to have this machine for at least 5 years. ... show more
Reviewed in the United States on March 1, 2022 by Zac
    • Works and Aesthetically pleasing!
Style: Airmega 250S
Looks so good in our space. Is nice and quite, works with smart home for scheduling super easy and has noticeably made a difference with our dust. I rotate it around our 1200sqft apartment for maximum efficiency. Sensor light may be meh but the research I did told me that most are, doesn’t effect the quality of the filter 🙌 ... show more
Reviewed in the United States on August 18, 2025 by Gallegos
    • Good purifier
Style: Airmega 250S
Product seems to work pretty well cleaning the air. It's a little loud went it ramps up to it's highest setting. Connecting it to the app is hit and miss.
Reviewed in the United States on December 5, 2022 by Aaron N.
    • Disappointed.
Style: Airmega 250S
I was excited to get this. I've done extensive research and this product was listed in the top three recommendations for air purifiers. For background, I have severe allergies to tree pollen, dust, pets, etc. I have a rabbit air purifier that will clean out a room of everything in just a few hours. I had a feral outdoor cat spraying my house and the smell was getting inside - even after clean up, the smell lingered. The rabbit was my saving grace and removed all that odor. It does an amazing job with pet dander and dust, too. It kept my allergies to a mininum. But because of the price, I couldn't afford a second one... But I really needed another air purifier for the front end of my house, as that would be my temporary bedroom while family stays with me, so I opted to buy this, while I kept the rabbit for my family. Well... I've had this product a month and it has done nothing to clean my air. My allergies have been the most severe its ever been. Only when I'm in the back with the rabbit, does it subside. This thing also alerts me every three days that the pre filter needs maintenance. When I remove it, there's very little junk present. Like why am I getting a maintenance when this thing is brand new?? However, my rabbit can be jammed pack with all the disgusting junk in its pre filter and still do a better job at cleaning my air. And oh, lemme tell you, when that cat comes around, this filter will do nothing with the odor. I specifically made sure to get a purifer with a carbon filter for this purpose. And whelp, I have to move my rabbit to the front room for a few hours to help out with the smell as this Conway can't do anything by itself. This product was such a waste of money! You get what you pay for... but for $350 I expected a little more. I even have some random off brand air purifiers I got off this site, that I put in closed off smaller rooms, and for under $50 they do a better job... I doubt I'm using this product wrong, so I wanna know where all these positive reviews are coming from. It must be from normal every day use and not for extreme situations like mine. Guess I better save up and upgrade. ... show more
Reviewed in the United States on March 25, 2025 by Kitty
    • It's Good, Not Great. But pricey.
Style: Airmega 250S
I like this air purifier but my rooms are still fairly dusty even with this thing running constantly. It's relatively quiet but after two years, the fan is making some squeaky noises, it's not as quiet as it used to be. I also can't believe they raised they price even though there are new Coway units on the market. This was $250 when I bought it... now $350. Wow. Add to that they yearly cost of an $80 filter. At least it looks pretty nice and elegant. Like a modern speaker. ... show more
Reviewed in the United States on July 13, 2026 by Some Guy
    • i have had these for almost a year
Style: Airmega 250S
so heres the deal. these things work great. I am a smoker, and you literally cant tell by coming in my house. I tell people that I smoke in my house and they dont believe me. Camel Wides. These things are one of the best purchases I have made. they hook up to Alexa easily. their smart mode is great and there is even an option to turn the light off on the unit. they probably will work for 900 sq feet as advertised. I have two in my house of 1200 sq feet at other ends, but I think one would have been good enough. I strongly recommend you purchase these. the air is just so much cleaner. They have a prefilter that you can wash and you are supposed to do that like once a month and it takes like 10 seconds. the HEPA filter you are supposed to do once a year, but I have been thoroughly rinsing it and shoving it back in and letting it dry itself off and its been working fine doing that. though I am sure eventually I will shove my new filters in there, but hey if its still working great why not? I bought two of the 250S and I like the WIFI integration and the app is easy to use and helps you track how and when your air is going downhill. ... show more
Reviewed in the United States on March 24, 2023 by Hunter
    • Favorite HEPA air filter
Style: Airmega 250S
When the air quality is poor it sounds like a plane during take off, but it gets the job done quickly and the app gives me real time updates about the small (e.g. smoke) vs larger air particles (e.g. dust) needing to be filtered. I can turn off all of the lights while still using the filter overnight so it's not bright at all. Sleep mode is really quiet. ... show more
Reviewed in the United States on May 31, 2025 by Kale

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