Data through April 2026
Running cost · Air Purifiers · ENERGY STAR certified
Greenlite G-Pure-15W
At the standardized usage ENERGY STAR assumes, the Greenlite G-Pure-15W consumes 92 kWh a year — about $17 at the U.S. average electricity rate ($1.44 a month). Compared with the median certified air purifier, it uses 38% less electricity — rank 49 out of 214. The same unit costs $11 a year in North Dakota but $43 in Hawaii — electricity rates, not the appliance, make the difference. 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
$17/yr
- Per month
- $1.44
- Per day
- 5¢
- Certified use
- 92 kWh/yr
- Rated room size
- 161 sq ft
- CADR (smoke)
- 104
- 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¢ | $16 | |
| Alaska | 27.4¢ | $25 | |
| Arizona | 15.5¢ | $14 | |
| Arkansas | 14.2¢ | $13 | |
| California | 35.3¢ | $32 | |
| Colorado | 16.5¢ | $15 | |
| Connecticut | 32.2¢ | $30 | |
| Delaware | 18.8¢ | $17 | |
| District of Columbia | 25.4¢ | $23 | |
| Florida | 15.4¢ | $14 | |
| Georgia | 15.4¢ | $14 | |
| Hawaiipriciest | 46.6¢ | $43 | |
| Idaho | 12.7¢ | $12 | |
| Illinois | 20.5¢ | $19 | |
| Indiana | 17.9¢ | $16 | |
| Iowa | 13.9¢ | $13 | |
| Kansas | 15.8¢ | $15 | |
| Kentucky | 15.0¢ | $14 | |
| Louisiana | 14.4¢ | $13 | |
| Maine | 28.4¢ | $26 | |
| Maryland | 22.1¢ | $20 | |
| Massachusetts | 29.4¢ | $27 | |
| Michigan | 21.4¢ | $20 | |
| Minnesota | 16.4¢ | $15 | |
| Mississippi | 16.8¢ | $15 | |
| Missouri | 14.0¢ | $13 | |
| Montana | 13.9¢ | $13 | |
| Nebraska | 13.3¢ | $12 | |
| Nevada | 14.3¢ | $13 | |
| New Hampshire | 27.2¢ | $25 | |
| New Jersey | 23.5¢ | $22 | |
| New Mexico | 15.2¢ | $14 | |
| New York | 29.4¢ | $27 | |
| North Carolina | 16.3¢ | $15 | |
| North Dakotacheapest | 12.3¢ | $11 | |
| Ohio | 19.5¢ | $18 | |
| Oklahoma | 13.3¢ | $12 | |
| Oregon | 15.8¢ | $15 | |
| Pennsylvania | 21.5¢ | $20 | |
| Rhode Island | 28.3¢ | $26 | |
| South Carolina | 17.1¢ | $16 | |
| South Dakota | 14.5¢ | $13 | |
| 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) |
|---|---|---|
| WOZOYO Pure Air PA2 | 92 | $17 |
| Aeocky Cybertron | 93 | $18 |
| Rainbow Luggable Ultramost efficient | 93 | $18 |
| Alen BreatheSmart 25imost efficient | 90 | $17 |
| Byzeng APH200-22Jmost efficient | 90 | $17 |
| LEVOIT LAP-B851S-WNAmost efficient | 90 | $17 |
Run your own numbers
Your rate, your numbers
- Per day
- 5¢
- Per month
- $1.44
- Per year
- $17
92 kWh/yr × 18.8¢/kWh = $17/yr
Prefilled with this model's certified 92 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 Greenlite G-Pure-15W use?
- ENERGY STAR certifies the Greenlite G-Pure-15W at 92 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 Greenlite G-Pure-15W cost to run per month?
- About $1.44 a month at the U.S. average residential rate (18.8¢/kWh) — 5¢ a day, or $17 a year. Your state's rate moves this up or down; see the table above.
- Is the Greenlite G-Pure-15W energy efficient?
- It uses 38% 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 Greenlite G-Pure-15W cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $11 a year in North Dakota (12.3¢/kWh) and $43 in Hawaii (46.6¢/kWh).