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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This item: COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and True HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart & Rapid Mode, 3yr Warranty, 250S
$271.99
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From the brand
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Our obsession with helping people live happier, healthier lives began in 1989.
Coway has become a global leader in intensive research, engineering and innovation, amassing over 5,000 intellectual property rights in all. We believe every element needs to be examined, researched, understood, tested and retested. We obsess over every detail, so Coway products can help transform your space into health sanctuary.
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From the manufacturer
Coway Airmega Premium Line-up
 Airmega 250S |  Airmega 250 |  Airmega 300 |  Airmega 300S |  Airmega 400/400(G) |  Airmega 400S(G)/400S |  Airmega IconS | |
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Customer Reviews
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828
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828
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6,109
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6,109
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Price
| $271.99 | $399.99 | $289.00 | $451.63 | $339.00 | — | $699.99 |
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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. |
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App & Alexa & DRS
| ✔ | ✘ | ✘ | ✔ | ✘ | ✔ | ✔ |
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Auto Mode
| ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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Eco Mode
| ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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Sleep Mode
| Automatic | Automatic | Manual | Manual | Automatic | Automatic | Automatic |
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Rapid Mode
| ✔ | ✔ | ✘ | ✘ | ✘ | ✘ | ✘ |
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Filters Configuration
| Pre-Filter+ Carbon + True HEPA | Pre-Filter+ Carbon + True HEPA | Pre-Filter+ Carbon + True HEPA | Pre-Filter+ Carbon + True HEPA | Pre-Filter+ Carbon + True HEPA | Pre-Filter+ Carbon + True HEPA | Pre-Filter+ Carbon + True HEPA |
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Pollution Indicator
| ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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Filter Life Time Indicator
| ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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Manual Fan Speed
| Low, Medium, High | Low, Medium, High | Low, Medium, High | Low, Medium, High | Low, Medium, High | Low, Medium, High | Low, Medium, High |
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Timer & Scheduler
| Timer 1, 2, 4, 8 Hr, Scheduler | Timer 1, 4, 8 Hr | 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, 2, 4, 8 Hr, Scheduler |
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Available Colors
| Beige | Beige | White | White | White / Graphite | Graphite / White | Beige |
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Coway Airmega 250 Overview
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Coway Airmega 250 Cahmber Test
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Say goodbye to stress and hello to clean, fresh air!
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Compare with similar items
This Item  Coway COWAY Air Purifiers for Home Large Room Up to 1,860 ft², Washable Pre-Filter and True HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, App Control, Smart & Rapid Mode, 3yr Warranty, 250S |  |  |  |  |  | |
| Price | -10% $271.99 Typical: $301.19 | $399.99 | $451.63 | -5% $211.30 Typical: $223.37 | $699.99 | -15% $549.22 List: $649.00 |
| Delivery | Get it as soon as Monday, Jul 29 | Get it as soon as Monday, Jul 29 | Get it as soon as Monday, Jul 29 | Get it as soon as Tuesday, Jul 30 | Get it as soon as Monday, Jul 29 | Get it as soon as Monday, Jul 29 |
| Customer Ratings | ||||||
| Sleep mode | ||||||
| Noise level | ||||||
| Easy to use | ||||||
| Style | ||||||
| Value for money | ||||||
| Sold By | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com |
| filter type | True HEPA, Active Carbon Filter, Pre-Filter | True HEPA, Active Carbon Filter, Pre-Filter | True HEPA, Active Carbon Filter, Pre-Filter | True HEPA, Active Carbon Filter, Pre-Filter | True HEPA, Active Carbon Filter, Pre-Filter | True HEPA, Active Carbon Filter, Pre-Filter |
| floor area | 930 square feet | 930 square feet | 1256 square feet | 975 square feet | 649 square feet | 649 square feet |
| control method | touch | touch | voice, touch | touch | touch | touch |
| power source | Corded Electric | AC | Corded Electric | Corded Electric | Corded Electric | Corded Electric |
| particle retention size | 0.01 micron | 0.01 micron | 1256 square feet | 0.01 micron | 0.01 micron | 0.01 micron |
| noise level | 22 decibels | 22 decibels | 22 decibels | 20.6 decibels | 21.7 decibels | 21.7 decibels |
Reviews with images
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 other countries
Doug Bullock
In bedroom with lights off shuts down fan & visual indicator unless poor air quality
Reviewed in Canada on March 22, 2024Style: Airmega 250Verified Purchase
DANO
absolute solid machine
Reviewed in Canada on October 24, 2023Style: Airmega 250SVerified Purchase
