Data through April 2026
Running cost · Air Purifiers · ENERGY STAR certified
Rainbow Brisk Box Ultra
The Rainbow Brisk Box Ultra's certified consumption is 94 kWh per year, which prices out to about $18 at the national average rate — your hours of use scale that directly. That's 36% less than the median certified air purifier, placing it comfortably in the efficient third of the field (53 of 214). Where you live moves the bill from $12 a year in North Dakota to $44 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
$18/yr
- Per month
- $1.48
- Per day
- 5¢
- Certified use
- 94 kWh/yr
- Rated room size
- 574 sq ft
- CADR (smoke)
- 370
- Technology
- Fan and Filter
- Efficiency
- 25.2 CFM/W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $16 | |
| Alaska | 27.4¢ | $26 | |
| Arizona | 15.5¢ | $15 | |
| Arkansas | 14.2¢ | $13 | |
| California | 35.3¢ | $33 | |
| Colorado | 16.5¢ | $16 | |
| Connecticut | 32.2¢ | $30 | |
| Delaware | 18.8¢ | $18 | |
| District of Columbia | 25.4¢ | $24 | |
| Florida | 15.4¢ | $14 | |
| Georgia | 15.4¢ | $14 | |
| Hawaiipriciest | 46.6¢ | $44 | |
| Idaho | 12.7¢ | $12 | |
| Illinois | 20.5¢ | $19 | |
| Indiana | 17.9¢ | $17 | |
| Iowa | 13.9¢ | $13 | |
| Kansas | 15.8¢ | $15 | |
| Kentucky | 15.0¢ | $14 | |
| Louisiana | 14.4¢ | $14 | |
| Maine | 28.4¢ | $27 | |
| Maryland | 22.1¢ | $21 | |
| Massachusetts | 29.4¢ | $28 | |
| Michigan | 21.4¢ | $20 | |
| Minnesota | 16.4¢ | $15 | |
| Mississippi | 16.8¢ | $16 | |
| Missouri | 14.0¢ | $13 | |
| Montana | 13.9¢ | $13 | |
| Nebraska | 13.3¢ | $12 | |
| Nevada | 14.3¢ | $13 | |
| New Hampshire | 27.2¢ | $26 | |
| New Jersey | 23.5¢ | $22 | |
| New Mexico | 15.2¢ | $14 | |
| New York | 29.4¢ | $28 | |
| North Carolina | 16.3¢ | $15 | |
| North Dakotacheapest | 12.3¢ | $12 | |
| Ohio | 19.5¢ | $18 | |
| Oklahoma | 13.3¢ | $13 | |
| Oregon | 15.8¢ | $15 | |
| Pennsylvania | 21.5¢ | $20 | |
| Rhode Island | 28.3¢ | $27 | |
| South Carolina | 17.1¢ | $16 | |
| South Dakota | 14.5¢ | $14 | |
| Tennessee | 14.9¢ | $14 | |
| Texas | 17.0¢ | $16 | |
| Utah | 13.3¢ | $12 | |
| Vermont | 24.6¢ | $23 | |
| Virginia | 17.4¢ | $16 | |
| Washington | 14.4¢ | $13 | |
| West Virginia | 16.1¢ | $15 | |
| Wisconsin | 19.2¢ | $18 | |
| Wyoming | 14.7¢ | $14 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Aeocky Cybertron | 93 | $18 |
| Honeywell HPA4100Bmost efficient | 95 | $18 |
| Rainbow Luggable Ultramost efficient | 93 | $18 |
| Greenlite G-Pure-15Wmost efficient | 92 | $17 |
| WOZOYO Pure Air PA2 | 92 | $17 |
| Alen BreatheSmart 25imost efficient | 90 | $17 |
Run your own numbers
Your rate, your numbers
- Per day
- 5¢
- Per month
- $1.48
- Per year
- $18
94 kWh/yr × 18.8¢/kWh = $18/yr
Prefilled with this model's certified 94 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 Rainbow Brisk Box Ultra use?
- ENERGY STAR certifies the Rainbow Brisk Box Ultra at 94 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 Rainbow Brisk Box Ultra cost to run per month?
- About $1.48 a month at the U.S. average residential rate (18.8¢/kWh) — 5¢ a day, or $18 a year. Your state's rate moves this up or down; see the table above.
- Is the Rainbow Brisk Box Ultra energy efficient?
- It uses 36% less electricity than the median certified air purifier, placing it in the efficient third of certified models. It also meets ENERGY STAR's Most Efficient criteria.
- What does the Rainbow Brisk Box Ultra cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $12 a year in North Dakota (12.3¢/kWh) and $44 in Hawaii (46.6¢/kWh).