Coway Airmega 450S(W);Airmega 450S(BG);Airmega 450S(*);AP-2524C_WT;AP-2524C_BG; AP-2524C _*: $84 a year to run
This model (Air purifiers) uses 399 kWh of electricity a year, which costs about $84 a year and $839 over 10 years at 21.0¢/kWh.
Energy use
399 kWh
per year
Running cost per year
$84
21.0¢/kWh
Running cost over 10 years
$839
Efficiency rank
233 / 240
Product details
| Room size (sq ft) | 687 |
|---|---|
| Technology | Fan and Filter |
| ENERGY STAR Most Efficient | No |
| Available since | February 1, 2025 |
Compared with the average model (Air purifiers), this one costs about $46 more a year.
More efficient alternatives
- 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