Data through June 2026
Running cost · Air Purifiers · ENERGY STAR certified
Coway Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_
At the standardized usage ENERGY STAR assumes, the Coway Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_ consumes 344 kWh a year — about $63 at the U.S. average electricity rate ($5.26 a month). Even among certified models it's on the thirsty end: 132% more electricity than the median air purifier, ranked 204 of 225. Where you live moves the bill from $45 a year in Nevada to $181 in Hawaii. 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
$63/yr
- Per month
- $5.26
- Per day
- 17¢
- Certified use
- 344 kWh/yr
- Rated room size
- 558 sq ft
- CADR (smoke)
- 360
- Technology
- Fan and Filter
- Efficiency
- 6.3 CFM/W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $56 | |
| Alaska | 28.2¢ | $97 | |
| Arizona | 15.2¢ | $52 | |
| Arkansas | 14.1¢ | $49 | |
| California | 34.7¢ | $120 | |
| Colorado | 17.1¢ | $59 | |
| Connecticut | 24.3¢ | $84 | |
| Delaware | 19.3¢ | $66 | |
| District of Columbia | 24.4¢ | $84 | |
| Florida | 15.1¢ | $52 | |
| Georgia | 16.4¢ | $56 | |
| Hawaiipriciest | 52.7¢ | $181 | |
| Idaho | 14.4¢ | $49 | |
| Illinois | 19.9¢ | $68 | |
| Indiana | 17.5¢ | $60 | |
| Iowa | 15.9¢ | $55 | |
| Kansas | 15.7¢ | $54 | |
| Kentucky | 14.3¢ | $49 | |
| Louisiana | 13.5¢ | $46 | |
| Maine | 29.6¢ | $102 | |
| Maryland | 21.8¢ | $75 | |
| Massachusetts | 29.6¢ | $102 | |
| Michigan | 23.0¢ | $79 | |
| Minnesota | 17.5¢ | $60 | |
| Mississippi | 14.9¢ | $51 | |
| Missouri | 16.2¢ | $56 | |
| Montana | 15.1¢ | $52 | |
| Nebraska | 13.3¢ | $46 | |
| Nevadacheapest | 13.1¢ | $45 | |
| New Hampshire | 27.0¢ | $93 | |
| New Jersey | 24.9¢ | $86 | |
| New Mexico | 15.1¢ | $52 | |
| New York | 29.5¢ | $101 | |
| North Carolina | 14.7¢ | $51 | |
| North Dakota | 14.1¢ | $49 | |
| Ohio | 19.2¢ | $66 | |
| Oklahoma | 14.3¢ | $49 | |
| Oregon | 16.3¢ | $56 | |
| Pennsylvania | 21.7¢ | $75 | |
| Rhode Island | 29.2¢ | $101 | |
| South Carolina | 15.6¢ | $53 | |
| South Dakota | 15.4¢ | $53 | |
| Tennessee | 14.1¢ | $48 | |
| Texas | 15.9¢ | $55 | |
| Utah | 13.4¢ | $46 | |
| Vermont | 24.4¢ | $84 | |
| Virginia | 17.2¢ | $59 | |
| Washington | 14.9¢ | $51 | |
| West Virginia | 15.4¢ | $53 | |
| Wisconsin | 19.6¢ | $67 | |
| Wyoming | 15.2¢ | $52 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Coway Airmega Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_ | 344 | $63 |
| Midea KJ600G-RX600A | 341 | $63 |
| PURECODE PAR001 | 341 | $63 |
| Sharp KJ600F-LM1-SH | 341 | $63 |
| Blueair Pure 211+ | 350 | $64 |
| Blueair 6712211000 | 336 | $62 |
Run your own numbers
Your rate, your numbers
- Per day
- 17¢
- Per month
- $5.26
- Per year
- $63
344 kWh/yr × 18.3¢/kWh = $63/yr
Prefilled with this model's certified 344 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.
Certified variants covered by this entry
Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_* · Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_*
Questions, answered with the data
- How much electricity does the Coway Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_ use?
- ENERGY STAR certifies the Coway Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_ at 344 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 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_ cost to run per month?
- About $5.26 a month at the U.S. average residential rate (18.3¢/kWh) — 17¢ a day, or $63 a year. Your state's rate moves this up or down; see the table above.
- Is the Coway Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_ energy efficient?
- It uses 132% more electricity than the median certified air purifier, which puts it among the least efficient certified models.
- What does the Coway Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_ cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $45 a year in Nevada (13.1¢/kWh) and $181 in Hawaii (52.7¢/kWh).
- Does this figure cover other model numbers?
- Yes — 2 certified retail variants (color, finish, and store-specific SKUs) share this exact energy certification. They're listed under "Certified variants" on this page.