How much does it cost to run an air purifier?
The same air purifier costs $61 a year in Hawaii (40.40 ¢ per kWh) and $18 in North Dakota (11.82 ¢), a gap of $43 or 3.4 times. Model range at 17.23 ¢: $9.48 to $59.68 a year (247 listed).
Map
- $17.97 to $20.09
- $20.09 to $22.57
- $22.57 to $24.46
- $24.46 to $34.64
- $34.64 to $61.41
Darker = costlier to run air purifier. Click a state for its hub.
Your numbers
All 51 states
| 1 | Hawaii | 40.40 | $61.41 | $22.22 | $139.95 | $5.12 | 96 |
|---|---|---|---|---|---|---|---|
| 2 | California | 31.35 | $47.65 | $17.24 | $108.60 | $3.97 | 27 |
| 3 | Massachusetts | 30.41 | $46.22 | $16.73 | $105.34 | $3.85 | 57 |
| 4 | Rhode Island | 29.48 | $44.81 | $16.21 | $102.12 | $3.73 | 58 |
| 5 | Connecticut | 29.31 | $44.55 | $16.12 | $101.53 | $3.71 | 37 |
| 6 | Maine | 27.69 | $42.09 | $15.23 | $95.92 | $3.51 | 21 |
| 7 | New York | 26.39 | $40.11 | $14.51 | $91.41 | $3.34 | 32 |
| 8 | Alaska | 26.11 | $39.69 | $14.36 | $90.45 | $3.31 | 56 |
| 9 | New Hampshire | 24.53 | $37.29 | $13.49 | $84.97 | $3.11 | 19 |
| 10 | Vermont | 22.79 | $34.64 | $12.53 | $78.94 | $2.89 | 3 |
| 11 | New Jersey | 22.48 | $34.17 | $12.36 | $77.87 | $2.85 | 32 |
| 12 | District of Columbia | 21.92 | $33.32 | $12.06 | $75.93 | $2.78 | 27 |
| 13 | Michigan | 20.03 | $30.45 | $11.02 | $69.38 | $2.54 | 55 |
| 14 | Maryland | 19.53 | $29.69 | $10.74 | $67.65 | $2.47 | 36 |
| 15 | Pennsylvania | 19.29 | $29.32 | $10.61 | $66.82 | $2.44 | 45 |
| 16 | Wisconsin | 18.08 | $27.48 | $9.94 | $62.63 | $2.29 | 80 |
| 17 | Illinois | 17.67 | $26.86 | $9.72 | $61.21 | $2.24 | 33 |
| 18 | Delaware | 17.15 | $26.07 | $9.43 | $59.41 | $2.17 | 48 |
| 19 | Ohio | 16.90 | $25.69 | $9.29 | $58.54 | $2.14 | 73 |
| 20 | Alabama | 16.09 | $24.46 | $8.85 | $55.74 | $2.04 | 49 |
| 21 | Indiana | 15.96 | $24.26 | $8.78 | $55.29 | $2.02 | 100 |
| 22 | Minnesota | 15.83 | $24.06 | $8.71 | $54.84 | $2.01 | 52 |
| 23 | Colorado | 15.69 | $23.85 | $8.63 | $54.35 | $1.99 | 75 |
| 24 | Oregon | 15.46 | $23.50 | $8.50 | $53.55 | $1.96 | 25 |
| 25 | Texas | 15.40 | $23.41 | $8.47 | $53.35 | $1.95 | 53 |
| 26 | West Virginia | 15.39 | $23.39 | $8.46 | $53.31 | $1.95 | 135 |
| 27 | Virginia | 15.28 | $23.23 | $8.40 | $52.93 | $1.94 | 37 |
| 28 | Arizona | 15.26 | $23.20 | $8.39 | $52.86 | $1.93 | 47 |
| 29 | Florida | 15.21 | $23.12 | $8.37 | $52.69 | $1.93 | 54 |
| 30 | South Carolina | 15.12 | $22.98 | $8.32 | $52.38 | $1.92 | 38 |
| 31 | New Mexico | 14.85 | $22.57 | $8.17 | $51.44 | $1.88 | 53 |
| 32 | Georgia | 14.74 | $22.40 | $8.11 | $51.06 | $1.87 | 49 |
| 33 | Kansas | 14.44 | $21.95 | $7.94 | $50.02 | $1.83 | 50 |
| 34 | Mississippi | 14.03 | $21.33 | $7.72 | $48.60 | $1.78 | 57 |
| 35 | North Carolina | 14.00 | $21.28 | $7.70 | $48.50 | $1.77 | 43 |
| 36 | Iowa | 13.62 | $20.70 | $7.49 | $47.18 | $1.73 | 43 |
| 37 | Wyoming | 13.37 | $20.32 | $7.35 | $46.31 | $1.69 | 126 |
| 38 | South Dakota | 13.32 | $20.25 | $7.33 | $46.14 | $1.69 | 23 |
| 39 | Missouri | 13.30 | $20.22 | $7.32 | $46.07 | $1.68 | 100 |
| 40 | Nevada | 13.26 | $20.16 | $7.29 | $45.93 | $1.68 | 44 |
| 41 | Tennessee | 13.22 | $20.09 | $7.27 | $45.79 | $1.67 | 45 |
| 42 | Oklahoma | 13.21 | $20.08 | $7.27 | $45.76 | $1.67 | 45 |
| 43 | Washington | 13.17 | $20.02 | $7.24 | $45.62 | $1.67 | 18 |
| 44 | Kentucky | 13.13 | $19.96 | $7.22 | $45.48 | $1.66 | 120 |
| 45 | Utah | 13.02 | $19.79 | $7.16 | $45.10 | $1.65 | 97 |
| 46 | Montana | 12.99 | $19.74 | $7.14 | $45.00 | $1.65 | 73 |
| 47 | Arkansas | 12.87 | $19.56 | $7.08 | $44.58 | $1.63 | 68 |
| 48 | Louisiana | 12.52 | $19.03 | $6.89 | $43.37 | $1.59 | 53 |
| 49 | Nebraska | 12.05 | $18.32 | $6.63 | $41.74 | $1.53 | 70 |
| 50 | Idaho | 11.83 | $17.98 | $6.51 | $40.98 | $1.50 | 22 |
| 51 | North Dakota | 11.82 | $17.97 | $6.50 | $40.94 | $1.50 | 89 |
152 kWh a year times each state's 2025 home price (247 models, ENERGY STAR data as of 2 Oct 2026).
CSVPay less
- Model spread: 10th percentile 55 kWh, 90th 346; the 291 kWh gap is $50.21 a year at 17.23 ¢ and $117.73 at 40.40 ¢ (Hawaii).
- 69 models meet the Most Efficient 2025 criteria: median 87 kWh against 152, $11.27 a year at 17.23 ¢.
- Location: 3.4 times between Hawaii ($61.41) and North Dakota ($17.97); 100% of utilities in Hawaii list a time-of-use rate (EIA-861).
Where the kWh comes from
Annual energy on the ENERGY STAR room air cleaner listing. Median 152 kWh, 10th to 90th percentile 55 to 346, range 30 to 490, 247 models. Certified models only. Method: appliance hub.
Sources
| Source | Retrieved |
|---|---|
| ENERGY STAR Certified products | 2 Oct 2026 |
| EIA retail sales | 26 Oct 2026 |
| EPA eGRID2023 | 2 Oct 2026 |
| DOE formula | 2 Oct 2026 |
More
a TV, a clothes washer, an electric range, all appliances, EV charging, calculators.
Questions
Cost to run an air purifier for a year?
$26.19 at 17.23 ¢ and 152 kWh; $17.97 in North Dakota to $61.41 in Hawaii.
Most expensive state for an air purifier?
Hawaii: $61.41 at 40.40 ¢.
Cheapest state for an air purifier?
North Dakota: $17.97 at 11.82 ¢.
kWh used by an air purifier?
Median 152; 10th to 90th percentile 55 to 346; 247 models.
Does the model matter for an air purifier?
Yes: 90th against 10th percentile is $50.21 a year at the U.S. price.
CO2 from an air purifier?
53 kg a year at 0.348 kg per kWh (U.S.).
Why would my air purifier bill differ?
Median 152 kWh is for new certified models; 17.23 ¢ is an average.
Fixed charges in the air purifier cost?
Not included.