Data through April 2026
Running cost · Air Purifiers · ENERGY STAR certified
Alen BreatheSmart 35i
The Alen BreatheSmart 35i's certified consumption is 136 kWh per year, which prices out to about $26 at the national average rate — your hours of use scale that directly. Efficiency-wise it's unremarkable in a good way: within 8% of the median certified air purifier (rank 99 of 214). Where you live moves the bill from $17 a year in North Dakota to $63 in Hawaii. 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
$26/yr
- Per month
- $2.13
- Per day
- 7¢
- Certified use
- 136 kWh/yr
- Rated room size
- 233 sq ft
- CADR (smoke)
- 150
- Technology
- Fan and Filter
- Efficiency
- 6.7 CFM/W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $24 | |
| Alaska | 27.4¢ | $37 | |
| Arizona | 15.5¢ | $21 | |
| Arkansas | 14.2¢ | $19 | |
| California | 35.3¢ | $48 | |
| Colorado | 16.5¢ | $22 | |
| Connecticut | 32.2¢ | $44 | |
| Delaware | 18.8¢ | $26 | |
| District of Columbia | 25.4¢ | $35 | |
| Florida | 15.4¢ | $21 | |
| Georgia | 15.4¢ | $21 | |
| Hawaiipriciest | 46.6¢ | $63 | |
| Idaho | 12.7¢ | $17 | |
| Illinois | 20.5¢ | $28 | |
| Indiana | 17.9¢ | $24 | |
| Iowa | 13.9¢ | $19 | |
| Kansas | 15.8¢ | $21 | |
| Kentucky | 15.0¢ | $20 | |
| Louisiana | 14.4¢ | $20 | |
| Maine | 28.4¢ | $39 | |
| Maryland | 22.1¢ | $30 | |
| Massachusetts | 29.4¢ | $40 | |
| Michigan | 21.4¢ | $29 | |
| Minnesota | 16.4¢ | $22 | |
| Mississippi | 16.8¢ | $23 | |
| Missouri | 14.0¢ | $19 | |
| Montana | 13.9¢ | $19 | |
| Nebraska | 13.3¢ | $18 | |
| Nevada | 14.3¢ | $19 | |
| New Hampshire | 27.2¢ | $37 | |
| New Jersey | 23.5¢ | $32 | |
| New Mexico | 15.2¢ | $21 | |
| New York | 29.4¢ | $40 | |
| North Carolina | 16.3¢ | $22 | |
| North Dakotacheapest | 12.3¢ | $17 | |
| Ohio | 19.5¢ | $27 | |
| Oklahoma | 13.3¢ | $18 | |
| Oregon | 15.8¢ | $21 | |
| Pennsylvania | 21.5¢ | $29 | |
| Rhode Island | 28.3¢ | $38 | |
| South Carolina | 17.1¢ | $23 | |
| South Dakota | 14.5¢ | $20 | |
| Tennessee | 14.9¢ | $20 | |
| Texas | 17.0¢ | $23 | |
| Utah | 13.3¢ | $18 | |
| Vermont | 24.6¢ | $33 | |
| Virginia | 17.4¢ | $24 | |
| Washington | 14.4¢ | $20 | |
| West Virginia | 16.1¢ | $22 | |
| Wisconsin | 19.2¢ | $26 | |
| Wyoming | 14.7¢ | $20 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Honeywell HPA4200B | 137 | $26 |
| CLOROX 11030 | 132 | $25 |
| Dreo DR-HAP007S | 140 | $26 |
| Dreo Home DR-HAP007S | 140 | $26 |
| LEVOIT LAP-C311S-WUSR | 132 | $25 |
| Windmill SAP2V1 | 132 | $25 |
Run your own numbers
Your rate, your numbers
- Per day
- 7¢
- Per month
- $2.13
- Per year
- $26
136 kWh/yr × 18.8¢/kWh = $26/yr
Prefilled with this model's certified 136 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 Alen BreatheSmart 35i use?
- ENERGY STAR certifies the Alen BreatheSmart 35i at 136 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 Alen BreatheSmart 35i cost to run per month?
- About $2.13 a month at the U.S. average residential rate (18.8¢/kWh) — 7¢ a day, or $26 a year. Your state's rate moves this up or down; see the table above.
- Is the Alen BreatheSmart 35i energy efficient?
- It uses 8% less electricity than the median certified air purifier.
- What does the Alen BreatheSmart 35i cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $17 a year in North Dakota (12.3¢/kWh) and $63 in Hawaii (46.6¢/kWh).