Honeywell HPA4100B running cost
$17.39/year
The Honeywell HPA4100B is rated at 95 kWh per year (ENERGY STAR test conditions). At the US average residential price of 18.3¢/kWh (July 2026), that is about $17.39 a year, or $1.45 a month.
How it compares
Among 74 certified small-room (under 200 sq ft) air purifiers (same size band), it ranks #51 for lowest running cost (class median $15.56/year). Recommended room size (sq ft): 169.
Cheaper-to-run air purifiers in the same size band
- Blueair 4612522000 — 30 kWh/yr, $5.49/yr
- DREAME CVA10B — 32 kWh/yr, $5.86/yr
- AeroNova MK01A — 33 kWh/yr, $6.04/yr
- AeroNova DH-JH01A — 33 kWh/yr, $6.04/yr
- AROEVE MK01A — 33 kWh/yr, $6.04/yr
Specifications
| Smoke CADR (cfm) | 109.0 |
|---|---|
| Dust CADR (cfm) | 117.0 |
| Pollen CADR (cfm) | 117.0 |
| PM2.5 CADR (cfm) | 113.0 |
| Ozone emissions (ppb) | 0.00 |
| Filter type | HEPA |
| Smart / connected | No |
| On market since | 2026-07-01 |
| Annual energy use | 95 kWh |
Source: ENERGY STAR certified air purifiers dataset, record 4518205. Real-world use depends on hours of operation, settings and climate.
Cost to run in every state
| State | Price | Per year |
|---|---|---|
| Louisiana | 12.7¢ | $12.08 |
| Nevada | 12.8¢ | $12.13 |
| Utah | 13.1¢ | $12.46 |
| North Dakota | 13.4¢ | $12.74 |
| Tennessee | 13.7¢ | $13.02 |
| Idaho | 13.7¢ | $13.04 |
| Nebraska | 13.8¢ | $13.09 |
| Kentucky | 13.8¢ | $13.12 |
| Arkansas | 14.3¢ | $13.61 |
| Oklahoma | 14.3¢ | $13.63 |
| Wyoming | 14.4¢ | $13.64 |
| Mississippi | 14.5¢ | $13.81 |
| Washington | 14.7¢ | $13.97 |
| Montana | 15.0¢ | $14.24 |
| Florida | 15.0¢ | $14.28 |
| North Carolina | 15.2¢ | $14.40 |
| Kansas | 15.3¢ | $14.51 |
| South Dakota | 15.4¢ | $14.60 |
| Arizona | 15.4¢ | $14.61 |
| South Carolina | 15.5¢ | $14.70 |
| West Virginia | 15.8¢ | $14.99 |
| Texas | 15.9¢ | $15.09 |
| Oregon | 16.0¢ | $15.17 |
| Iowa | 16.0¢ | $15.19 |
| Missouri | 16.1¢ | $15.29 |
| New Mexico | 16.1¢ | $15.29 |
| Georgia | 16.3¢ | $15.46 |
| Alabama | 16.4¢ | $15.58 |
| Indiana | 16.7¢ | $15.89 |
| Colorado | 17.0¢ | $16.15 |
| Minnesota | 17.4¢ | $16.58 |
| Virginia | 17.6¢ | $16.67 |
| Delaware | 18.5¢ | $17.56 |
| Wisconsin | 19.1¢ | $18.11 |
| Illinois | 19.2¢ | $18.26 |
| Ohio | 19.4¢ | $18.48 |
| Maryland | 21.4¢ | $20.34 |
| Pennsylvania | 21.7¢ | $20.63 |
| Michigan | 23.1¢ | $21.90 |
| Vermont | 23.8¢ | $22.56 |
| Connecticut | 24.2¢ | $22.95 |
| New Jersey | 25.2¢ | $23.93 |
| District of Columbia | 25.2¢ | $23.95 |
| New Hampshire | 26.6¢ | $25.27 |
| Rhode Island | 28.3¢ | $26.88 |
| Alaska | 28.8¢ | $27.39 |
| New York | 29.9¢ | $28.41 |
| Massachusetts | 30.5¢ | $28.97 |
| Maine | 32.4¢ | $30.79 |
| California | 33.6¢ | $31.93 |
| Hawaii | 48.0¢ | $45.60 |