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Smart Air CMKQ104: $75 a year to run

This model (Air purifiers) uses 359 kWh of electricity a year, which costs about $75 a year and $754 over 10 years at 21.0¢/kWh.

Energy use
359 kWh
per year
Running cost per year
$75
21.0¢/kWh
Running cost over 10 years
$754
Efficiency rank
219 / 240

Product details

Room size (sq ft)547
TechnologyFan and Filter
ENERGY STAR Most EfficientNo
Available sinceAugust 15, 2026

Compared with the average model (Air purifiers), this one costs about $37 more a year.

More efficient alternatives

ModelkWh/yearCost/year
Blueair Pure 211+350$74
Coway Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_*344$72
Coway Airmega Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_*344$72
Midea KJ600G-RX600A341$72
PURECODE PAR001341$72
Sharp KJ600F-LM1-SH341$72
Blueair 6712211000336$71
Coway Airmega ProX335$70

Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology