Rainbow Brisk Box Ultra running cost
$17.21/year
The Rainbow Brisk Box Ultra is rated at 94 kWh per year (ENERGY STAR test conditions). At the US average residential price of 18.3¢/kWh (July 2026), that is about $17.21 a year, or $1.43 a month.
How it compares
Among 77 certified large-room (400+ sq ft) air purifiers (same size band), it ranks #3 for lowest running cost (class median $55.66/year). Recommended room size (sq ft): 574.
Cheaper-to-run air purifiers in the same size band
- Rainbow Luggable XXL — 75 kWh/yr, $13.73/yr
- Rainbow Luggable XL Ultra — 81 kWh/yr, $14.83/yr
Specifications
| Smoke CADR (cfm) | 370.0 |
|---|---|
| Dust CADR (cfm) | 441.0 |
| Pollen CADR (cfm) | 450.0 |
| PM2.5 CADR (cfm) | 404.0 |
| Ozone emissions (ppb) | 0.00 |
| Filter type | HEPA |
| Smart / connected | No |
| On market since | 2025-11-07 |
| Annual energy use | 94 kWh |
Source: ENERGY STAR certified air purifiers dataset, record 4518178. Real-world use depends on hours of operation, settings and climate.
Cost to run in every state
| State | Price | Per year |
|---|---|---|
| Louisiana | 12.7¢ | $11.96 |
| Nevada | 12.8¢ | $12.00 |
| Utah | 13.1¢ | $12.33 |
| North Dakota | 13.4¢ | $12.61 |
| Tennessee | 13.7¢ | $12.89 |
| Idaho | 13.7¢ | $12.91 |
| Nebraska | 13.8¢ | $12.95 |
| Kentucky | 13.8¢ | $12.98 |
| Arkansas | 14.3¢ | $13.47 |
| Oklahoma | 14.3¢ | $13.49 |
| Wyoming | 14.4¢ | $13.50 |
| Mississippi | 14.5¢ | $13.67 |
| Washington | 14.7¢ | $13.83 |
| Montana | 15.0¢ | $14.09 |
| Florida | 15.0¢ | $14.13 |
| North Carolina | 15.2¢ | $14.25 |
| Kansas | 15.3¢ | $14.35 |
| South Dakota | 15.4¢ | $14.45 |
| Arizona | 15.4¢ | $14.46 |
| South Carolina | 15.5¢ | $14.54 |
| West Virginia | 15.8¢ | $14.83 |
| Texas | 15.9¢ | $14.93 |
| Oregon | 16.0¢ | $15.01 |
| Iowa | 16.0¢ | $15.03 |
| Missouri | 16.1¢ | $15.12 |
| New Mexico | 16.1¢ | $15.12 |
| Georgia | 16.3¢ | $15.29 |
| Alabama | 16.4¢ | $15.42 |
| Indiana | 16.7¢ | $15.73 |
| Colorado | 17.0¢ | $15.98 |
| Minnesota | 17.4¢ | $16.40 |
| Virginia | 17.6¢ | $16.50 |
| Delaware | 18.5¢ | $17.37 |
| Wisconsin | 19.1¢ | $17.92 |
| Illinois | 19.2¢ | $18.07 |
| Ohio | 19.4¢ | $18.28 |
| Maryland | 21.4¢ | $20.13 |
| Pennsylvania | 21.7¢ | $20.42 |
| Michigan | 23.1¢ | $21.67 |
| Vermont | 23.8¢ | $22.32 |
| Connecticut | 24.2¢ | $22.71 |
| New Jersey | 25.2¢ | $23.68 |
| District of Columbia | 25.2¢ | $23.70 |
| New Hampshire | 26.6¢ | $25.00 |
| Rhode Island | 28.3¢ | $26.59 |
| Alaska | 28.8¢ | $27.10 |
| New York | 29.9¢ | $28.11 |
| Massachusetts | 30.5¢ | $28.66 |
| Maine | 32.4¢ | $30.47 |
| California | 33.6¢ | $31.59 |
| Hawaii | 48.0¢ | $45.12 |