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Coway Airmega 250
#9 of 22 in medium · #25 of 49 overall · all Coway models
3.3
Quiet for its CADR; the 930 sq ft claim is at 1 air change per hour, so treat it as a 370 sq ft unit for allergies.
240 cfmsmoke CADR
372 sq ftAHAM room size
52 dBat full speed
52 Wmax power
$229street price, being verified
One air change of a 300 sq ft room in about 10 min$70 a year in filters$579 to own for 5 yearsAHAM Verifide CADR
Ratings
Includes independent measurements from Live Science.
Each rating places this unit among the others on a 0.5–5 scale, within its room-size class for the measures that scale with size and across the whole catalog for the rest. Weighted together they give the overall 3.3. Formula and weights.
Specifications
- Smoke CADR
- 240 cfm
- Dust CADR
- 250 cfm
- Pollen CADR
- 245 cfm
- AHAM room size
- 372 sq ft
- Maker's room size
- 930 sq ft
- Max power
- 52 W
- Noise (low / high)
- 23 / 52 dB
- Filter cost
- $70
- Filter life
- 12 months
- Filters per year
- $70
- 5-year cost of ownership
- $579
- True HEPA
- Yes
- Activated carbon
- 0.5 lb
- Auto mode (PM2.5 sensor)
- Yes
- App
- No
- Washable prefilter
- Yes
- AHAM Verifide
- Yes
- Energy Star
- Yes
- Weight
- 21.0 lb
- Released
- 2020
Independent measurements
| Metric | Value | Source |
|---|---|---|
| Particle reduction smallest (0.3-micron) particle count 15 min after a 10-match smoke test; highest fan speed; 619 sq ft room. 44% on low | 66 % | Live Science 2022-09 |
| Particle reduction 2.5-micron particle count 15 min after a 5-stick incense test; LOW fan speed; 619 sq ft room | 83 % | Live Science 2022-09 |
| Particle reduction ambient 0.3-micron particle count after 15 min on highest fan speed with no added pollutant; 619 sq ft room. 10% on low | 24 % | Live Science 2022-09 |
How it compares with its neighbors
| # | Model | Smoke CADR | Dust | Pollen | W | dB max | Filters/yr | $/CADR | Score |
|---|---|---|---|---|---|---|---|---|---|
| 6 | Coway Airmega AP-1512HH Mighty | 233 | 246 | 240 | 77 | 54 | $50 | 0.8 | 3.4 |
| 7 | Winix AM90 | 232 | 243 | 246 | 70 | 55 | $70 | 0.8 | 3.4 |
| 8 | Coway Airmega 200M | 233 | 246 | 240 | 77 | 54 | $50 | 0.8 | 3.3 |
| 9 | Coway Airmega 250 | 240 | 250 | 245 | 52 | 52 | $70 | 1.0 | 3.3 |
| 10 | Levoit Core 300S | 141 | 140 | 145 | 45 | 50 | $45 | 0.9 | 3.3 |
| 11 | Levoit Vital 100S | 130 | 128 | 131 | 23 | 50 | $70 | 0.8 | 3.3 |
| 12 | Alen BreatheSmart 45i | 245 | 245 | 245 | 50 | 49 | $79 | 1.4 | 3.2 |