Coway Airmega ProX: $70 a year to run
This model (Air purifiers) uses 335 kWh of electricity a year, which costs about $70 a year and $704 over 10 years at 21.0¢/kWh.
Energy use
335 kWh
per year
Running cost per year
$70
21.0¢/kWh
Running cost over 10 years
$704
Efficiency rank
209 / 240
Product details
| Room size (sq ft) | 894 |
|---|---|
| Technology | Fan and Filter |
| ENERGY STAR Most Efficient | Yes |
| Available since | March 1, 2023 |
Compared with the average model (Air purifiers), this one costs about $32 more a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| CUCKOO CAC-K1910FW | 325 | $68 |
| CUCKOO CAC-D2020FW | 316 | $66 |
| AIRMEGA AP-1515H | 314 | $66 |
| Coway AP-1515H | 314 | $66 |
| Coway Airmega AP-1515H | 314 | $66 |
| CleanForce CP-Rainbow | 309 | $65 |
| Alen BreatheSmart 75i_V2 | 304 | $64 |
| Sharp AirMac X7 | 299 | $63 |
- Refrigerators
- Freezers
- Washing machines
- Dishwashers
- Tumble dryers
- Room air conditioners
- Dehumidifiers
- Water heaters
- Electric cooktops and ranges
- Televisions
- Computers
Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology