Why it matters
The Coway Airmega 250 is a HEPA room unit air purifier that its maker rates for 930 sq ft.
At the usual 4.8 air changes an hour and an 8-foot ceiling, a 930-square-foot rating implies about 595 cubic feet of clean air a minute. In a 12-by-15-foot bedroom that would turn the air over roughly 25 times an hour.
Filtration: HEPA. Quietest setting, per the maker: 22 dB. Power draw: 64 W.
The listing names app control.
Price-wise it sat in the dearest third of the 74 hepa room unit models we cover when we checked; the button shows today's price.
It qualifies for our lists Best Air Purifiers for Allergies, Best Air Purifiers for Basements and Musty Odors, Best Air Purifiers for Home Offices, where it is ranked against every model that meets the same rule.
Its rated room size of 930 square feet is below the middle of the range we cover: 66 of the 152 purifiers with a stated figure come in lower, and the range runs from 62 square feet to 4,800 square feet.
Compared with the Coway Airmega 250S: rated room size 930 sq ft here vs 1,860 sq ft.
The listing gives dimensions of 18.5 x 19.7 x 8.3 in and a weight of 20.5 lbs.
Who it's for, and who should skip it
Good fit if
- Rooms up to about 930 sq ft
- Allergy season
Look elsewhere if
- Whole-home filtration on its own
- Removing gases without a substantial carbon stage
Pros and cons
Pros
- Rated for 930 sq ft
- Low setting 22 dB
- 64 W draw
Cons
- Filters are an ongoing cost
- Size to the room at 4.8 air changes per hour
Limitations to weigh
- Specifications are the maker's or seller's own figures; check fit against your equipment's model number and the actual size.
Specifications
The bracket shows where each figure comes from.
| Price | $399 | Maker |
|---|---|---|
| Product weight | 20.5 lbs | Maker |
| Dimensions (seller) | 18.5 x 19.7 x 8.3 in | Maker |
| Room coverage | 930 sq ft | Maker |
| Wattage | 64 W | Maker |
| Filter type | HEPA | Maker |
| Noise (seller) | 22 dB | Retailer |
Alternatives worth comparing
More air purifiers we cover
- Ameifu FXAP2W Air Purifier
- Airpura V400 VOC, Chemical, Smoke Compact Air Purifier (V400-Black) $629.98
- ULTTY SKJ-CR021 Air Purifier
- Honeywell AllergenPlus HPA304 Air Purifier
- Winix D480 Air Purifier $249.99
All air purifiers, compared in one table · Every Coway product we cover
Final verdict
A well-matched choice for rooms up to about 930 sq ft. Confirm the model it fits before ordering.
Where to buy
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