COWAY AIRMEGA, COWAY, Coway Airmega 50: $14 a year to run
This model (Air purifiers) uses 67 kWh of electricity a year, which costs about $14 a year and $141 over 10 years at 21.0¢/kWh.
Energy use
67 kWh
per year
Running cost per year
$14
21.0¢/kWh
Running cost over 10 years
$141
Efficiency rank
32 / 240
Product details
| Room size (sq ft) | 104 |
|---|---|
| Technology | Fan and Filter |
| ENERGY STAR Most Efficient | Yes |
| Available since | March 20, 2025 |
Compared with the average model (Air purifiers), this one saves about $24 a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| Blueair Pure 411 | 64 | $13 |
| BLACK+DECKER BAPT02 | 61 | $13 |
| Bionaire BAP9260 | 59 | $12 |
| CLOROX 11020 | 57 | $12 |
| Aeocky Pandora-Pro | 57 | $12 |
| Ionic Pro TA750 | 55 | $12 |
| WOZOYO Pure Air PA1 | 55 | $12 |
| Ikea E2111 | 44 | $9 |
- 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