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Coway Airmega 250 Smart Air Purifier, True HEPA Air Purifier with Smart Technology, Covers 930 sq. ft.

4.5 4.5 out of 5 stars 789 ratings
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Airmega 250
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Purchase options and add-ons

Color Warm Gray
Brand Coway
Product Dimensions 8.3"D x 18.5"W x 19.7"H
Floor Area 930 Square Feet
Specification Met Energy Star Certified, ETL Certified, CARB Certified
Power Source
AC
Item Weight
20.5 Pounds
Control Method
Touch
Filter Type
True HEPA, Active Carbon Filter, Pre-Filter

About this item

  • [Coverage] Designed to clean spaces up to 930 sq. ft. in 30 minutes.Specification sheet
  • [HyperCaptive Filtration System] Combination of a pre-filter, deodorization filter, and True HEPA Filter reduces 99.999% of 0.01-micron particles, including pollen 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
  • [Smart Mode] With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality. That means your unit is energy efficient without compromising effectiveness
  • [3-stage Manual Fan Speed] Control your Airmega's fan manually with low, medium, and high settings
  • [Filter Alerts]The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed

Customer ratings by feature

Style
4.8 4.8
Timer function
4.7 4.7
Sleep mode
4.6 4.6
Noise level
4.5 4.5

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Coway Airmega 250 Smart Air Purifier, True HEPA Air Purifier with Smart Technology, Covers 930 sq. ft.

Coway Airmega 250 Smart Air Purifier, True HEPA Air Purifier with Smart Technology, Covers 930 sq. ft.


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From the manufacturer

Control Panel

Coway Airmega Premium Line-up

Airmega 250

Airmega 250

Airmega 250

Airmega 250S

300

Airmega 300

airmega app

Airmega 300S

400

Airmega 400/400(G)

400S

Airmega 400S(G)/400S

ICON Seamless

Airmega ICON

Customer Reviews
4.5 out of 5 stars
789
4.5 out of 5 stars
789
4.6 out of 5 stars
6,051
4.6 out of 5 stars
6,051
4.6 out of 5 stars
6,051
4.6 out of 5 stars
6,051
4.9 out of 5 stars
15
Price
$301.19 $301.19 $330.26 $499.00 $430.09 $515.14 $538.82
Coverage
930 sq. ft. 930 sq. ft. 1,256 sq. ft. 1,256 sq. ft. 1,560 sq. ft. 1,560 sq. ft. 649 sq. ft.
App & Alexa & DRS
Auto Mode
Eco Mode
Sleep Mode
Automatic Automatic Maunal Maunal Automatic Automatic Automatic
Rapid Mode
Filters Configuration
Pre-Filter+ Carbon + True HEPA Pre-Filter+ Carbon + True HEPA re-Filter+ Carbon + True HEPA re-Filter+ Carbon + True HEPA re-Filter+ Carbon + True HEPA Pre-Filter+ Carbon + True HEPA Pre-Filter+ Carbon + True HEPA
Pollution Indicator
Filter Life Time Indicator
Manual Fan Speed
Low, Medium, High Low, Medium, High Low, Medium, High Low, Medium, High Low, Medium, High Low, Medium, High Low, Medium, High
Timer & Scheduler
Timer 1, 4, 8 Hr Timer 1, 2, 4, 8 Hr, Scheduler Timer 1, 4, 8 Hr Timer 1, 2, 4, 8 Hr, Scheduler Timer 1, 4, 8 Hr Timer 1, 2, 4, 8 Hr, Scheduler Timer 1, 4, 8 Hr
Available Colors
Beige Beige White White White / Graphite Graphite / White Beige

Product Description

The Coway Airmega 250 air purifier efficiently filter harmful sources in your space and capture 99.999% of nano-sized particles down to 0.01 microns, which is smaller than most allergens, bacteria, mold, and viruses. With coverage of up to 930 square feet, Coway’s 3-stage HyperCaptive filtration system (with Green True HEPA filter) wraps any space in clean air, 24 hours a day. Features Coway’s IoCare App, filter change indicators, smart mode, and real-time air quality monitoring. Coway Airmega 250S cleans and maintains spaces up to 930 sq. ft in 30 minutes.

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Coway Airmega 250 Smart Air Purifier, True HEPA Air Purifier with Smart Technology, Covers 930 sq. ft.
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Price-25% $301.19
List:$399.00
$618.67$430.09$260.99$330.26-15% $252.99
List:$299.00
Delivery
Get it as soon as Friday, May 17
Get it as soon as Friday, May 17
Get it as soon as Friday, May 17
Get it as soon as Friday, May 17
Get it as soon as Friday, May 17
Get it as soon as Friday, May 17
Customer Ratings
Sleep mode
4.6
4.5
4.5
4.5
4.5
4.4
Noise level
4.5
4.4
4.4
4.7
4.4
4.2
Easy to use
4.0
4.6
4.6
4.6
4.6
Easy to clean
4.7
4.7
4.9
4.7
4.4
Smart Features
3.8
3.8
3.8
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
filter type
True HEPA, Active Carbon Filter, Pre-Filter
HEPA
True HEPA, Active Carbon Filter, Pre-Filter
HEPA
True HEPA, Active Carbon Filter, Pre-Filter
True HEPA, Active Carbon Filter, Pre-Filter
floor area
930 square feet
2126 square feet
1560 square feet
500 square feet
1256 square feet
975 square feet
control method
touch
touch
touch
touch
touch
touch
power source
AC
Corded Electric
Corded Electric
ac
Corded Electric
Corded Electric
particle retention size
0.01 micron
0.01 micrometer
0.01 micrometer
0.3 micron
0.01 micrometer
0.01 micron
noise level
22 decibels
55 decibels
22 decibels
26.2 decibels
22 decibels
20.6 decibels

Customer reviews

4.5 out of 5 stars
4.5 out of 5
789 global ratings

Customers say

Customers like the quality, noise level, performance, appearance and value of the air purifier. For example, they mention it's a solid air purifying device that does an amazing job reducing dust, food smells and pet odors. They appreciate the quiet operation and the smart function of this purifier works extremely well. Some are happy with ease of use, and smell. However, some complain about connectivity.

AI-generated from the text of customer reviews

56 customers mention56 positive0 negative

Customers are satisfied with the quality of the air purifier. They mention it is a solid air purifying device with good looks. They say it does an amazing job reducing dust, food smells, and pet odors. Customers also say that it works pretty well cleaning the air and that it eliminates all airborne molecules.

"...It truly hauls air through one very large multistage filter (only 1 needed as replacement yearly). It claims to do a 900ft sq. room, & I believe it...." Read more

"...I've noticed a significant reduction in settled dust on my furniture surfaces.Highly recommended.EDIT JUNE 10, 2023:..." Read more

"...This powerhouse will recognize the bad air quality quickly and scrub out all the smoke caused by cooking...." Read more

"...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...." Read more

51 customers mention38 positive13 negative

Customers like the noise level of the air purifier. They say it is relatively quiet unless the fan is on high. The unit operates quietly, with a sweet little chiming sound.

"...had the Airmega 250 for over a year now and it has worked flawlessly, quietly (except when it goes into overdrive when I am cooking steak,) and is..." Read more

"...1. It has a smart feature on the machine that slowly and noiselessly checks the quality of the air...." Read more

"..."smart" mode on its own, turning on and off automatically and quietly doing its job. Even at highest speed, it's a quiet unit...." Read more

"...I have 2 already. I've also had to return 2 of them, as they develop a "Bzzzzz" sound after a few weeks. It's like the fan gets offbalance...." Read more

48 customers mention37 positive11 negative

Customers like the performance of the air purifier. They say it is very quiet, extremely effective, and the smart function of this purifier works extremely well. Some mention that the app while basic works flawlessly, and that the air cleaner works fine.

"...I bought this to help clean our air even more. It works very well...." Read more

"...I've had the Airmega 250 for over a year now and it has worked flawlessly, quietly (except when it goes into overdrive when I am cooking steak,) and..." Read more

"so heres the deal. these things work great. I am a smoker, and you literally cant tell by coming in my house...." Read more

"...This air purifier works around the clock and 98% of the time you have no idea that it is even on...." Read more

32 customers mention32 positive0 negative

Customers are satisfied with the appearance of the air purifier. They mention that it has a nice design, it blends right in with modern decor, and it's made thoughtfully. Some are also pleased with the performance and say that it looks and feels high quality.

"...(didn't even know what they looked like)... This product is exceptional in every way...." Read more

"...First of all, it's fairly nice looking in a simple, unassertive way that is happy to sit quietly in the background...." Read more

"Great and pretty good looking air filter. I have 2 already. I've also had to return 2 of them, as they develop a "Bzzzzz" sound after a few weeks...." Read more

"...Design: it’s much better to look at than any other air purifier I considered especially in its price range...." Read more

25 customers mention19 positive6 negative

Customers like the value of the air purifier. They say it's worth the price, works like a million bucks, and the replaceable filter is relatively inexpensive compared to other similar products.

"...research before purchasing an air purifier, and this one is truly reasonably priced, especially considering the features...." Read more

"...The replaceable filter is relatively inexpensive compared to other similar products (~$60), and it doesn't need to be replaced as often as some of..." Read more

"...I have two Coways, and this is my favorite. Well worth the money." Read more

"...The HEPA filter will need to be replaced when it runs out, the cost isn't cheap, but it's not the most expensive one either...." Read more

19 customers mention15 positive4 negative

Customers find the air purifier easy to use. They say it has a basic setup and is simple to understand. They also appreciate the app and say it's convenient.

"...First of all, it's fairly nice looking in a simple, unassertive way that is happy to sit quietly in the background...." Read more

"...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)..." Read more

"...Very convenient.Filter and prefilter: the filters seem very durable and high quality. They are easy to change out too...." Read more

"...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." Read more

17 customers mention15 positive2 negative

Customers like the smell of the air purifier. They mention it works great, clears out any odors, dust, smoke, and pollen. Some appreciate the auto function and pollution sensor.

"...Pulls smells fast & effectively...." Read more

"...it will automatically turn on if I start cooking and eliminates odors and smoke very quickly...." Read more

"...so I can't really comment on that aspect but the air in the house always smells fresh. The setup is very easy, and the functions are simple...." Read more

"It worked great, cleared out any odors, dust, smoke, lots of stuff. Air quality seemed to improve. Then the light went on to clean it...." Read more

10 customers mention0 positive10 negative

Customers have negative opinions about the connectivity of the air purifier. They say that it loses Internet connection a few times a week, the WiFi connection is unstable, and disconnects frequently. They also mention that the operation as a home connected device is terrible, and the app connecting is unreliable.

"...THIS UNIT DOES NOT HAVE THE "S" DESIGNATION/ IT DOES NOT UTILIZE WIFI... NO—THIS IS A GOOD THING???..." Read more

"...Cons:- Had a few days of an error with the app connecting (invalid MAC address), but eventually resolved itself..." Read more

"Loses Internet connection a few times a week and notifies you.Moderately loud if you fry some food and air detector turns fan on high...." Read more

"...The wifi connection is sort of unstable and disconnects frequently...." Read more

Does wonders for cooking
5 Stars
Does wonders for cooking
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
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Top reviews from the United States

Reviewed in the United States on September 3, 2022
Style: Airmega 250Verified Purchase
I did not make this purchase out of want ??? I'm very, very sick (have been for more than a year) & I needed something effective & affordable. WORST THING? I moved into new apt. only to find my ground level unit sits right next to the main drier vent. Because it's ground level, what flows in is almost impossible to get out, and hot drier air flows in & down. I almost gave up/ I did lots of research (enough to learn what I feared)??? I'll tell you what that is in a moment. You have to do deep research on a product like this/ there's so many options & most are useless (I'm sorry but it's true). I always read until I find those rare technocratic users who truly put products through their paces. THE TRUTH? Many of the high reviews for a majority of the available units are inspired by digital features (lights & listed options). It seems the old honeywell units were legit (really pulled dust, etc.)? But? They've become flimsy & flawed (even filters no longer seating well)... I never saw one of these COWAY units listed among either "featured" products or through "highest review" search option??? A real & smart user did a head to head with multiple brands & was truly impressed with COWAY. I punched the company name in (didn't even know what they looked like)... This product is exceptional in every way. It truly hauls air through one very large multistage filter (only 1 needed as replacement yearly). It claims to do a 900ft sq. room, & I believe it. PROBLEM? A unit is only as good as the convection it can create/ This is limited by irregularities in ANY space—lest you're buying a hulking industrial unit. I'm sicker than I wanna discuss here, I'm not an average user & the stakes are deadly serious. Before I even purchase this unit, I spent 2 days in the new apt. setting up fans & feeling the currents & air flow such that if I found an appropriate unit—I'd be able to effectively cycle all air through it. I say again, I almost gave up (I could easily see one MOSTLY must buy a larger, more industrial value unit if one has truly serious problems—and I don't have the money for such a purchase). THIS UNIT DOES NOT HAVE THE "S" DESIGNATION/ IT DOES NOT UTILIZE WIFI... NO—THIS IS A GOOD THING??? WHY WOULD YOU EVER NEED THE FEATURE & IT ADDS $100 TO THE PRICE... AND? IT'S BEEN MESSING WITH PEOPLE'S WIFI MORE GENERALLY (taking it down—in fact). There's a pre-filter screen & it works. The computer keeps track of the air volume. I started to notice eye irritation the other day & I cleaned the pre-filter (EASY PEASEY). The next morning? The light indicating time for the precise cleaning was on... IT WAS RIGHT ON THE MONEY!! The main filter is massive with a micro-fit (set in easy & snug across all sides/ no loss of seal anywhere). I think the replacement is $26 & you only need 1 every year... CRAZY/ SO MUCH CHEAPER TO OPERATE ON TOP OF REALLY CLEANING LOTS OF AIR. Pulls smells fast & effectively. It keeps track of the air quality & it works (it tells you when something is introduce into the air via simple active color bar). I've been running it in highest haul setting. I brought the fan down to medium yesterday & the slowed air-flow seemed to find even more particulates (I have air moving fast everywhere with fans & I think slowing down a bit helped—ironically). On top of everything else—it's an elegant looking model. It doesn't look like—or try to be—a smart-buddy (like some smart pod with lots of useless lights). I've been poor most of my life & when I do make a purchase, I do my research. I don't have money to burn & the stakes are very, very high for me (carbon monoxide is building in my blood, suffocating me slowly & horribly). I'm fighting for life/ I need anything that can help CUS I have emphysema already & nobody really knows why 02 is accumulating? Probably a black mold infestation in last apt... WHAT A PRODUCT/ I WISH I COULD SAY I'D BUILT IT... I've done a bit of inventing in my life. I'd like to think that if I did build an air purifier? it would look & function just like this... GET IT !!! SERIOUSLY...
76 people found this helpful
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Reviewed in the United States on April 7, 2024
Style: Airmega 250SVerified Purchase
We have to change our air filters so often, so obviously our house has lots of dust. I bought this to help clean our air even more. It works very well. The smart mode allows the machine to sleep until the sensor detects a need to come on. For example, if we start frying bacon, the purifier's light will change and start coming on at a higher level. The lights will continue to indicate at what level the air is until it is back to the highest air quality. I also turn the machine on manually to a high setting when I know the air needs it. We also like the fact that we don't have to worry about changing the filter as much because you can clean the filter that it has!
Reviewed in the United States on March 7, 2023
Style: Airmega 250Verified Purchase
I needed an air purifier that could handle a large open living/dining/entryway area in my apartment in dusty/smoggy NYC.

Since I was already very happy with a smaller capacity Coway purifier (AP-1512HH) in a bedroom, buying the Coway Airmega 250 was a no brainer.

I've had the Airmega 250 for over a year now and it has worked flawlessly, quietly (except when it goes into overdrive when I am cooking steak,) and is easy to clean and maintain.

First of all, it's fairly nice looking in a simple, unassertive way that is happy to sit quietly in the background. The smaller unit I have in the bedroom is not as attractive, IMHO.

Both units are pretty much "plug and play." They both monitor the air, automatically switching to a higher fan speed when indicated. If desired, the "Auto" function can be overridden, so the fan speed can be manually set. The 250 has an automatic "nighttime" setting that goes into a temporary sleep mode if no change of air quality is detected over a period of time. This is great if the unit is in a bedroom, though it will wake itself up if it detects an environmental change.

I am almost never aware of the 250, the main exception is when a smoky haze escapes the kitchen, usually when I am grilling or broiling meat. The unit then goes into "Red" alert, the fan switches to "High" and the air is cleared in a matter of minutes.

The filtration system is in two parts: a permanent mesh screen "pre-filter" which needs to be dusted or washed periodically, and a HEPA inner filter which can be dusted off, but needs to be replaced at least once a year, or as necessary. A red light goes off when either of the two filters needs cleaning or replacement.

I've noticed a significant reduction in settled dust on my furniture surfaces.

Highly recommended.

EDIT JUNE 10, 2023:
This unit went into auto “red alert” as soon as the Canadian wildfire smog started to engulf New York City. We shut our windows and it took the 250 (and our bedroom unit) about an hour to go from red to yellow and back to green. What a relief to have these two units!
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Reviewed in the United States on March 5, 2024
Style: Airmega 250Verified Purchase
Great and pretty good looking air filter. I have 2 already. I've also had to return 2 of them, as they develop a "Bzzzzz" sound after a few weeks. It's like the fan gets offbalance. If you lightly bump it, it'll stop for a few minutes, then start again, really pointing to a bad fan.
SO. Definitely recommend, also recommend you keep the box for returns and pay attention while it's still in the return period. The 2 that have made it past a few weeks are now months old with no issues.
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Top reviews from other countries

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Doug Bullock
5.0 out of 5 stars In bedroom with lights off shuts down fan & visual indicator unless poor air quality
Reviewed in Canada on March 22, 2024
Style: Airmega 250Verified Purchase
Working well. Pollution sensor fine I keep it on the 'Smart mode' at high sensitivity. I have it in a bedroom closed off from rest of apartment when sleeping. Unless pollution level high, it is on very low fan speed, no bothersome noise or indicator lights. Those will restart if I turn a light on but not when just screen light from checking smartphone news/social media. Air quality here generally good but feel better prepared for a smoky incident. I've not tested the unit in a forest fire smoke event, hoping it will help.
DANO
5.0 out of 5 stars absolute solid machine
Reviewed in Canada on October 24, 2023
Style: Airmega 250SVerified Purchase
A+++great product worked as advertised
Cliente de Amazon
4.0 out of 5 stars Dejo de funcionar la skill de alexa en mexico
Reviewed in Mexico on May 9, 2023
Style: Airmega 250SVerified Purchase
Dejo de funcionar la skill de alexa en mexico, solo el día de hoy dejo de funcionar, muy mal que compres algo y de la noche a la mañana te quiten funcionalidad. Lo pude resolver cambiando mi cuenta a usa y des pues de activar el skill regresar a México.
Massimo
1.0 out of 5 stars No Europe Plug
Reviewed in Germany on January 12, 2024
Style: Airmega 250SVerified Purchase
It doesn't come with a european power plug. Basically you will need to buy a converter from 110v to 220v just to turn it on. This version should not be on sale in Europe.
Amazon123
5.0 out of 5 stars BEST FRIEND EVER
Reviewed in Canada on May 24, 2023
Style: Airmega 250SVerified Purchase
The best air purifier I ever own. It’s completely silent in the smart mode and the lights can all be turned off when sleeping. The APP is amazing!!! I don’t know why people complain about it, puzzles me. With the app, I’m able to control all the Coway air purifiers that I bought for my home. It gives me reports and charts to track air quality. I’m also notified of any abnormalities or drastic changes in the air. I can control my units in one screen, LOVE IT!!! The filters are pretty amazing! I noticed less dust around the house too. Also cleans out the air / smell from cooking. These units helped a lot during wildfires