Data through April 2026
Running cost · Air Purifiers · ENERGY STAR certified
Midea KJ250G-Z42
The Midea KJ250G-Z42's certified consumption is 131 kWh per year, which prices out to about $25 at the national average rate — your hours of use scale that directly. That's close to the middle of the certified pack — about 11% under the median air purifier, ranked 92 of 214. Where you live moves the bill from $16 a year in North Dakota to $61 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria. 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
$25/yr
- Per month
- $2.06
- Per day
- 7¢
- Certified use
- 131 kWh/yr
- Rated room size
- 226 sq ft
- CADR (smoke)
- 146
- Technology
- Fan and Filter
- Efficiency
- 6.6 CFM/W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $23 | |
| Alaska | 27.4¢ | $36 | |
| Arizona | 15.5¢ | $20 | |
| Arkansas | 14.2¢ | $19 | |
| California | 35.3¢ | $46 | |
| Colorado | 16.5¢ | $22 | |
| Connecticut | 32.2¢ | $42 | |
| Delaware | 18.8¢ | $25 | |
| District of Columbia | 25.4¢ | $33 | |
| Florida | 15.4¢ | $20 | |
| Georgia | 15.4¢ | $20 | |
| Hawaiipriciest | 46.6¢ | $61 | |
| Idaho | 12.7¢ | $17 | |
| Illinois | 20.5¢ | $27 | |
| Indiana | 17.9¢ | $23 | |
| Iowa | 13.9¢ | $18 | |
| Kansas | 15.8¢ | $21 | |
| Kentucky | 15.0¢ | $20 | |
| Louisiana | 14.4¢ | $19 | |
| Maine | 28.4¢ | $37 | |
| Maryland | 22.1¢ | $29 | |
| Massachusetts | 29.4¢ | $39 | |
| Michigan | 21.4¢ | $28 | |
| Minnesota | 16.4¢ | $21 | |
| Mississippi | 16.8¢ | $22 | |
| Missouri | 14.0¢ | $18 | |
| Montana | 13.9¢ | $18 | |
| Nebraska | 13.3¢ | $17 | |
| Nevada | 14.3¢ | $19 | |
| New Hampshire | 27.2¢ | $36 | |
| New Jersey | 23.5¢ | $31 | |
| New Mexico | 15.2¢ | $20 | |
| New York | 29.4¢ | $39 | |
| North Carolina | 16.3¢ | $21 | |
| North Dakotacheapest | 12.3¢ | $16 | |
| Ohio | 19.5¢ | $26 | |
| Oklahoma | 13.3¢ | $17 | |
| Oregon | 15.8¢ | $21 | |
| Pennsylvania | 21.5¢ | $28 | |
| Rhode Island | 28.3¢ | $37 | |
| South Carolina | 17.1¢ | $22 | |
| South Dakota | 14.5¢ | $19 | |
| Tennessee | 14.9¢ | $20 | |
| Texas | 17.0¢ | $22 | |
| Utah | 13.3¢ | $17 | |
| Vermont | 24.6¢ | $32 | |
| Virginia | 17.4¢ | $23 | |
| Washington | 14.4¢ | $19 | |
| West Virginia | 16.1¢ | $21 | |
| Wisconsin | 19.2¢ | $25 | |
| Wyoming | 14.7¢ | $19 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| PELONIS KJ250G-Z42most efficient | 131 | $25 |
| PRO AIRE 1PAPUV15most efficient | 131 | $25 |
| CLOROX 11030 | 132 | $25 |
| LEVOIT LAP-C311S-WUSR | 132 | $25 |
| Windmill SAP2V1 | 132 | $25 |
| WOZOYO 200004-2 | 132 | $25 |
Run your own numbers
Your rate, your numbers
- Per day
- 7¢
- Per month
- $2.06
- Per year
- $25
131 kWh/yr × 18.8¢/kWh = $25/yr
Prefilled with this model's certified 131 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 KJ250G-Z42 use?
- ENERGY STAR certifies the Midea KJ250G-Z42 at 131 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 KJ250G-Z42 cost to run per month?
- About $2.06 a month at the U.S. average residential rate (18.8¢/kWh) — 7¢ a day, or $25 a year. Your state's rate moves this up or down; see the table above.
- Is the Midea KJ250G-Z42 energy efficient?
- It uses 11% less electricity than the median certified air purifier. It also meets ENERGY STAR's Most Efficient criteria.
- What does the Midea KJ250G-Z42 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 $61 in Hawaii (46.6¢/kWh).