COWAY AIRMEGA Airmega 50 running cost
$12.27/year
The COWAY AIRMEGA Airmega 50 is rated at 67 kWh per year (ENERGY STAR test conditions). At the US average residential price of 18.3¢/kWh (July 2026), that is about $12.27 a year, or $1.02 a month.
Also listed as: COWAY AIRMEGA, COWAY, Coway — Airmega 50. (* or # in a model number stands for a colour/variant code.)
How it compares
Among 74 certified small-room (under 200 sq ft) air purifiers (same size band), it ranks #32 for lowest running cost (class median $15.56/year). Recommended room size (sq ft): 104.
Cheaper-to-run air purifiers in the same size band
- Blueair 4612522000 — 30 kWh/yr, $5.49/yr
- DREAME CVA10B — 32 kWh/yr, $5.86/yr
- AeroNova MK01A — 33 kWh/yr, $6.04/yr
- AeroNova DH-JH01A — 33 kWh/yr, $6.04/yr
- AROEVE MK01A — 33 kWh/yr, $6.04/yr
Specifications
| Smoke CADR (cfm) | 67.0 |
|---|---|
| Dust CADR (cfm) | 74.0 |
| Pollen CADR (cfm) | 96.0 |
| PM2.5 CADR (cfm) | 71.0 |
| Ozone emissions (ppb) | 0.00 |
| Filter type | HEPA-Type |
| Smart / connected | No |
| On market since | 2025-03-20 |
| Annual energy use | 67 kWh |
Source: ENERGY STAR certified air purifiers dataset, record 4009116. Real-world use depends on hours of operation, settings and climate.
Cost to run in every state
| State | Price | Per year |
|---|---|---|
| Louisiana | 12.7¢ | $8.52 |
| Nevada | 12.8¢ | $8.56 |
| Utah | 13.1¢ | $8.79 |
| North Dakota | 13.4¢ | $8.98 |
| Tennessee | 13.7¢ | $9.19 |
| Idaho | 13.7¢ | $9.20 |
| Nebraska | 13.8¢ | $9.23 |
| Kentucky | 13.8¢ | $9.25 |
| Arkansas | 14.3¢ | $9.60 |
| Oklahoma | 14.3¢ | $9.61 |
| Wyoming | 14.4¢ | $9.62 |
| Mississippi | 14.5¢ | $9.74 |
| Washington | 14.7¢ | $9.86 |
| Montana | 15.0¢ | $10.04 |
| Florida | 15.0¢ | $10.07 |
| North Carolina | 15.2¢ | $10.16 |
| Kansas | 15.3¢ | $10.23 |
| South Dakota | 15.4¢ | $10.30 |
| Arizona | 15.4¢ | $10.30 |
| South Carolina | 15.5¢ | $10.36 |
| West Virginia | 15.8¢ | $10.57 |
| Texas | 15.9¢ | $10.64 |
| Oregon | 16.0¢ | $10.70 |
| Iowa | 16.0¢ | $10.71 |
| Missouri | 16.1¢ | $10.78 |
| New Mexico | 16.1¢ | $10.78 |
| Georgia | 16.3¢ | $10.90 |
| Alabama | 16.4¢ | $10.99 |
| Indiana | 16.7¢ | $11.21 |
| Colorado | 17.0¢ | $11.39 |
| Minnesota | 17.4¢ | $11.69 |
| Virginia | 17.6¢ | $11.76 |
| Delaware | 18.5¢ | $12.38 |
| Wisconsin | 19.1¢ | $12.77 |
| Illinois | 19.2¢ | $12.88 |
| Ohio | 19.4¢ | $13.03 |
| Maryland | 21.4¢ | $14.34 |
| Pennsylvania | 21.7¢ | $14.55 |
| Michigan | 23.1¢ | $15.44 |
| Vermont | 23.8¢ | $15.91 |
| Connecticut | 24.2¢ | $16.19 |
| New Jersey | 25.2¢ | $16.88 |
| District of Columbia | 25.2¢ | $16.89 |
| New Hampshire | 26.6¢ | $17.82 |
| Rhode Island | 28.3¢ | $18.95 |
| Alaska | 28.8¢ | $19.32 |
| New York | 29.9¢ | $20.03 |
| Massachusetts | 30.5¢ | $20.43 |
| Maine | 32.4¢ | $21.71 |
| California | 33.6¢ | $22.52 |
| Hawaii | 48.0¢ | $32.16 |