Data through April 2026
Running cost · Air Purifiers · ENERGY STAR certified
Midea CAF-A40US(H)
At the standardized usage ENERGY STAR assumes, the Midea CAF-A40US(H) consumes 127 kWh a year — about $24 at the U.S. average electricity rate ($1.99 a month). Efficiency-wise it's unremarkable in a good way: within 14% of the median certified air purifier (rank 89 of 214). The same unit costs $16 a year in North Dakota but $59 in Hawaii — electricity rates, not the appliance, make the difference. 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
$24/yr
- Per month
- $1.99
- Per day
- 7¢
- Certified use
- 127 kWh/yr
- Rated room size
- 200 sq ft
- CADR (smoke)
- 129
- Technology
- Fan and Filter
- Efficiency
- 6 CFM/W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $22 | |
| Alaska | 27.4¢ | $35 | |
| Arizona | 15.5¢ | $20 | |
| Arkansas | 14.2¢ | $18 | |
| California | 35.3¢ | $45 | |
| Colorado | 16.5¢ | $21 | |
| Connecticut | 32.2¢ | $41 | |
| Delaware | 18.8¢ | $24 | |
| District of Columbia | 25.4¢ | $32 | |
| Florida | 15.4¢ | $20 | |
| Georgia | 15.4¢ | $20 | |
| Hawaiipriciest | 46.6¢ | $59 | |
| Idaho | 12.7¢ | $16 | |
| Illinois | 20.5¢ | $26 | |
| Indiana | 17.9¢ | $23 | |
| Iowa | 13.9¢ | $18 | |
| Kansas | 15.8¢ | $20 | |
| Kentucky | 15.0¢ | $19 | |
| Louisiana | 14.4¢ | $18 | |
| Maine | 28.4¢ | $36 | |
| Maryland | 22.1¢ | $28 | |
| Massachusetts | 29.4¢ | $37 | |
| Michigan | 21.4¢ | $27 | |
| Minnesota | 16.4¢ | $21 | |
| Mississippi | 16.8¢ | $21 | |
| Missouri | 14.0¢ | $18 | |
| Montana | 13.9¢ | $18 | |
| Nebraska | 13.3¢ | $17 | |
| Nevada | 14.3¢ | $18 | |
| New Hampshire | 27.2¢ | $35 | |
| New Jersey | 23.5¢ | $30 | |
| New Mexico | 15.2¢ | $19 | |
| New York | 29.4¢ | $37 | |
| North Carolina | 16.3¢ | $21 | |
| North Dakotacheapest | 12.3¢ | $16 | |
| Ohio | 19.5¢ | $25 | |
| Oklahoma | 13.3¢ | $17 | |
| Oregon | 15.8¢ | $20 | |
| Pennsylvania | 21.5¢ | $27 | |
| Rhode Island | 28.3¢ | $36 | |
| South Carolina | 17.1¢ | $22 | |
| South Dakota | 14.5¢ | $18 | |
| Tennessee | 14.9¢ | $19 | |
| Texas | 17.0¢ | $22 | |
| Utah | 13.3¢ | $17 | |
| Vermont | 24.6¢ | $31 | |
| Virginia | 17.4¢ | $22 | |
| Washington | 14.4¢ | $18 | |
| West Virginia | 16.1¢ | $20 | |
| Wisconsin | 19.2¢ | $24 | |
| Wyoming | 14.7¢ | $19 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Activepure E210A | 127 | $24 |
| PELONIS CAF-A40US(H) | 127 | $24 |
| Toshiba CAF-A40US(H) | 127 | $24 |
| CUCKOO CAC-AB0610FI | 126 | $24 |
| Greenlite G-Pure-22W | 126 | $24 |
| ISINLIVE vortex V2 | 126 | $24 |
Run your own numbers
Your rate, your numbers
- Per day
- 7¢
- Per month
- $1.99
- Per year
- $24
127 kWh/yr × 18.8¢/kWh = $24/yr
Prefilled with this model's certified 127 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 Midea CAF-A40US(H) use?
- ENERGY STAR certifies the Midea CAF-A40US(H) at 127 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 Midea CAF-A40US(H) cost to run per month?
- About $1.99 a month at the U.S. average residential rate (18.8¢/kWh) — 7¢ a day, or $24 a year. Your state's rate moves this up or down; see the table above.
- Is the Midea CAF-A40US(H) energy efficient?
- It uses 14% less electricity than the median certified air purifier.
- What does the Midea CAF-A40US(H) cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $16 a year in North Dakota (12.3¢/kWh) and $59 in Hawaii (46.6¢/kWh).