Data through June 2026
Running cost · Air Purifiers · ENERGY STAR certified
Coway Airmega Airmega ProX;AP-3522F_US;Airmega ProX(W);Airmega ProX(*);AP-3522F_WT;AP-3522F_
The Coway Airmega Airmega ProX;AP-3522F_US;Airmega ProX(W);Airmega ProX(*);AP-3522F_WT;AP-3522F_'s certified consumption is 335 kWh per year, which prices out to about $61 at the national average rate — your hours of use scale that directly. Even among certified models it's on the thirsty end: 126% more electricity than the median air purifier, ranked 197 of 225. Where you live moves the bill from $44 a year in Nevada to $177 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria. Note the certified pool here is small (225 models), so rankings shift more with each data refresh.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$61/yr
- Per month
- $5.12
- Per day
- 17¢
- Certified use
- 335 kWh/yr
- Rated room size
- 894 sq ft
- CADR (smoke)
- 577
- Technology
- Fan and Filter
- Efficiency
- 10.2 CFM/W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $55 | |
| Alaska | 28.2¢ | $95 | |
| Arizona | 15.2¢ | $51 | |
| Arkansas | 14.1¢ | $47 | |
| California | 34.7¢ | $116 | |
| Colorado | 17.1¢ | $57 | |
| Connecticut | 24.3¢ | $81 | |
| Delaware | 19.3¢ | $65 | |
| District of Columbia | 24.4¢ | $82 | |
| Florida | 15.1¢ | $51 | |
| Georgia | 16.4¢ | $55 | |
| Hawaiipriciest | 52.7¢ | $177 | |
| Idaho | 14.4¢ | $48 | |
| Illinois | 19.9¢ | $67 | |
| Indiana | 17.5¢ | $59 | |
| Iowa | 15.9¢ | $53 | |
| Kansas | 15.7¢ | $53 | |
| Kentucky | 14.3¢ | $48 | |
| Louisiana | 13.5¢ | $45 | |
| Maine | 29.6¢ | $99 | |
| Maryland | 21.8¢ | $73 | |
| Massachusetts | 29.6¢ | $99 | |
| Michigan | 23.0¢ | $77 | |
| Minnesota | 17.5¢ | $59 | |
| Mississippi | 14.9¢ | $50 | |
| Missouri | 16.2¢ | $54 | |
| Montana | 15.1¢ | $51 | |
| Nebraska | 13.3¢ | $44 | |
| Nevadacheapest | 13.1¢ | $44 | |
| New Hampshire | 27.0¢ | $90 | |
| New Jersey | 24.9¢ | $84 | |
| New Mexico | 15.1¢ | $50 | |
| New York | 29.5¢ | $99 | |
| North Carolina | 14.7¢ | $49 | |
| North Dakota | 14.1¢ | $47 | |
| Ohio | 19.2¢ | $64 | |
| Oklahoma | 14.3¢ | $48 | |
| Oregon | 16.3¢ | $55 | |
| Pennsylvania | 21.7¢ | $73 | |
| Rhode Island | 29.2¢ | $98 | |
| South Carolina | 15.6¢ | $52 | |
| South Dakota | 15.4¢ | $51 | |
| Tennessee | 14.1¢ | $47 | |
| Texas | 15.9¢ | $53 | |
| Utah | 13.4¢ | $45 | |
| Vermont | 24.4¢ | $82 | |
| Virginia | 17.2¢ | $58 | |
| Washington | 14.9¢ | $50 | |
| West Virginia | 15.4¢ | $52 | |
| Wisconsin | 19.6¢ | $66 | |
| Wyoming | 15.2¢ | $51 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Coway Airmega ProXmost efficient | 335 | $61 |
| Coway Airmega ProX;Airmega ProX(W);Airmega ProX(*);AP-3522F_US;AP-3522F_WT;AP-3522F_most efficient | 335 | $61 |
| Blueair 6712211000 | 336 | $62 |
| Midea KJ600G-RX600A | 341 | $63 |
| PURECODE PAR001 | 341 | $63 |
| Sharp KJ600F-LM1-SH | 341 | $63 |
Run your own numbers
Your rate, your numbers
- Per day
- 17¢
- Per month
- $5.12
- Per year
- $61
335 kWh/yr × 18.3¢/kWh = $61/yr
Prefilled with this model's certified 335 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 ProX;AP-3522F_US;Airmega ProX(W);Airmega ProX(*);AP-3522F_WT;AP-3522F_ use?
- ENERGY STAR certifies the Coway Airmega Airmega ProX;AP-3522F_US;Airmega ProX(W);Airmega ProX(*);AP-3522F_WT;AP-3522F_ at 335 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 ProX;AP-3522F_US;Airmega ProX(W);Airmega ProX(*);AP-3522F_WT;AP-3522F_ cost to run per month?
- About $5.12 a month at the U.S. average residential rate (18.3¢/kWh) — 17¢ a day, or $61 a year. Your state's rate moves this up or down; see the table above.
- Is the Coway Airmega Airmega ProX;AP-3522F_US;Airmega ProX(W);Airmega ProX(*);AP-3522F_WT;AP-3522F_ energy efficient?
- It uses 126% more electricity than the median certified air purifier, which puts it among the least efficient certified models. It also meets ENERGY STAR's Most Efficient criteria.
- What does the Coway Airmega Airmega ProX;AP-3522F_US;Airmega ProX(W);Airmega ProX(*);AP-3522F_WT;AP-3522F_ cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $44 a year in Nevada (13.1¢/kWh) and $177 in Hawaii (52.7¢/kWh).