Data through April 2026
Running cost · Air Purifiers · ENERGY STAR certified
Coway Airmega Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_
The Coway Airmega Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_'s certified consumption is 389 kWh per year, which prices out to about $73 at the national average rate — your hours of use scale that directly. Even among certified models it's on the thirsty end: 163% more electricity than the median air purifier, ranked 206 of 214. Where you live moves the bill from $48 a year in North Dakota to $181 in Hawaii. Note the certified pool here is small (214 models), so rankings shift more with each data refresh.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$73/yr
- Per month
- $6.10
- Per day
- 20¢
- Certified use
- 389 kWh/yr
- Rated room size
- 687 sq ft
- CADR (smoke)
- 443
- Technology
- Fan and Filter
- Efficiency
- 6.7 CFM/W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $68 | |
| Alaska | 27.4¢ | $106 | |
| Arizona | 15.5¢ | $60 | |
| Arkansas | 14.2¢ | $55 | |
| California | 35.3¢ | $137 | |
| Colorado | 16.5¢ | $64 | |
| Connecticut | 32.2¢ | $125 | |
| Delaware | 18.8¢ | $73 | |
| District of Columbia | 25.4¢ | $99 | |
| Florida | 15.4¢ | $60 | |
| Georgia | 15.4¢ | $60 | |
| Hawaiipriciest | 46.6¢ | $181 | |
| Idaho | 12.7¢ | $49 | |
| Illinois | 20.5¢ | $80 | |
| Indiana | 17.9¢ | $70 | |
| Iowa | 13.9¢ | $54 | |
| Kansas | 15.8¢ | $61 | |
| Kentucky | 15.0¢ | $58 | |
| Louisiana | 14.4¢ | $56 | |
| Maine | 28.4¢ | $111 | |
| Maryland | 22.1¢ | $86 | |
| Massachusetts | 29.4¢ | $115 | |
| Michigan | 21.4¢ | $83 | |
| Minnesota | 16.4¢ | $64 | |
| Mississippi | 16.8¢ | $65 | |
| Missouri | 14.0¢ | $54 | |
| Montana | 13.9¢ | $54 | |
| Nebraska | 13.3¢ | $52 | |
| Nevada | 14.3¢ | $56 | |
| New Hampshire | 27.2¢ | $106 | |
| New Jersey | 23.5¢ | $92 | |
| New Mexico | 15.2¢ | $59 | |
| New York | 29.4¢ | $115 | |
| North Carolina | 16.3¢ | $63 | |
| North Dakotacheapest | 12.3¢ | $48 | |
| Ohio | 19.5¢ | $76 | |
| Oklahoma | 13.3¢ | $52 | |
| Oregon | 15.8¢ | $61 | |
| Pennsylvania | 21.5¢ | $84 | |
| Rhode Island | 28.3¢ | $110 | |
| South Carolina | 17.1¢ | $66 | |
| South Dakota | 14.5¢ | $56 | |
| Tennessee | 14.9¢ | $58 | |
| Texas | 17.0¢ | $66 | |
| Utah | 13.3¢ | $52 | |
| Vermont | 24.6¢ | $96 | |
| Virginia | 17.4¢ | $68 | |
| Washington | 14.4¢ | $56 | |
| West Virginia | 16.1¢ | $62 | |
| Wisconsin | 19.2¢ | $75 | |
| Wyoming | 14.7¢ | $57 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Coway Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_ | 389 | $73 |
| LEVOIT LAP-C601S-WUSR | 389 | $73 |
| CUCKOO CAC-AH2810FNW | 388 | $73 |
| LEVOIT LAP-C601S-WUS | 387 | $73 |
| AirDoctor AD4000 | 396 | $75 |
| Coway Airmega 450S(W);Airmega 450S(BG);Airmega 450S(*);AP-2524C_WT;AP-2524C_BG; AP-2524C _ | 399 | $75 |
Run your own numbers
Your rate, your numbers
- Per day
- 20¢
- Per month
- $6.10
- Per year
- $73
389 kWh/yr × 18.8¢/kWh = $73/yr
Prefilled with this model's certified 389 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh comes from the ENERGY STAR room air cleaner test basis, which assumes continuous daily operation. Running fewer hours costs proportionally less.
Questions, answered with the data
- How much electricity does the Coway Airmega Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_ use?
- ENERGY STAR certifies the Coway Airmega Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_ at 389 kWh per year. The certified annual kWh comes from the ENERGY STAR room air cleaner test basis, which assumes continuous daily operation. Running fewer hours costs proportionally less.
- How much does the Coway Airmega Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_ cost to run per month?
- About $6.10 a month at the U.S. average residential rate (18.8¢/kWh) — 20¢ a day, or $73 a year. Your state's rate moves this up or down; see the table above.
- Is the Coway Airmega Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_ energy efficient?
- It uses 163% more electricity than the median certified air purifier, which puts it among the least efficient certified models.
- What does the Coway Airmega Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_ cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $48 a year in North Dakota (12.3¢/kWh) and $181 in Hawaii (46.6¢/kWh).