WattCost

Data through April 2026

Running cost · Air Purifiers · ENERGY STAR certified

AIRMEGA AP-1125G

At the standardized usage ENERGY STAR assumes, the AIRMEGA AP-1125G consumes 195 kWh a year — about $37 at the U.S. average electricity rate ($3.06 a month). That's close to the middle of the certified pack — about 32% above the median air purifier, ranked 129 of 214. The same unit costs $24 a year in North Dakota but $91 in Hawaii — electricity rates, not the appliance, make the difference. 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

$37/yr

$5.65 · cheapest certified air purifiers$92 · priciest
Per month
$3.06
Per day
10¢
Certified use
195 kWh/yr
Rated room size
287 sq ft
CADR (smoke)
185
Technology
Fan and Filter
Efficiency
5.8 CFM/W
30 kWh490 kWh
Where the AIRMEGA AP-1125G (▮) sits among all 214 certified air purifiers, by annual kWh

What it costs in every state

AIRMEGA AP-1125G: 195 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$34
Alaska27.4¢$53
Arizona15.5¢$30
Arkansas14.2¢$28
California35.3¢$69
Colorado16.5¢$32
Connecticut32.2¢$63
Delaware18.8¢$37
District of Columbia25.4¢$50
Florida15.4¢$30
Georgia15.4¢$30
Hawaiipriciest46.6¢$91
Idaho12.7¢$25
Illinois20.5¢$40
Indiana17.9¢$35
Iowa13.9¢$27
Kansas15.8¢$31
Kentucky15.0¢$29
Louisiana14.4¢$28
Maine28.4¢$55
Maryland22.1¢$43
Massachusetts29.4¢$57
Michigan21.4¢$42
Minnesota16.4¢$32
Mississippi16.8¢$33
Missouri14.0¢$27
Montana13.9¢$27
Nebraska13.3¢$26
Nevada14.3¢$28
New Hampshire27.2¢$53
New Jersey23.5¢$46
New Mexico15.2¢$30
New York29.4¢$57
North Carolina16.3¢$32
North Dakotacheapest12.3¢$24
Ohio19.5¢$38
Oklahoma13.3¢$26
Oregon15.8¢$31
Pennsylvania21.5¢$42
Rhode Island28.3¢$55
South Carolina17.1¢$33
South Dakota14.5¢$28
Tennessee14.9¢$29
Texas17.0¢$33
Utah13.3¢$26
Vermont24.6¢$48
Virginia17.4¢$34
Washington14.4¢$28
West Virginia16.1¢$31
Wisconsin19.2¢$37
Wyoming14.7¢$29

Certified models closest in efficiency

air purifiers within reach of 195 kWh/yr
ModelkWh/yr$/yr (US avg)
Coway Airmega AP-1125G195$37
Coway AP-1125G195$37
Blueair 3332111100193$36
LAGO LAPKJ350GS1BLK202$38
Midea 793K19A202$38
Midea KJ350G-S1202$38

Run your own numbers

Your rate, your numbers

Per day
10¢
Per month
$3.06
Per year
$37

195 kWh/yr × 18.8¢/kWh = $37/yr

Prefilled with this model's certified 195 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 AIRMEGA AP-1125G use?
ENERGY STAR certifies the AIRMEGA AP-1125G at 195 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 AIRMEGA AP-1125G cost to run per month?
About $3.06 a month at the U.S. average residential rate (18.8¢/kWh) — 10¢ a day, or $37 a year. Your state's rate moves this up or down; see the table above.
Is the AIRMEGA AP-1125G energy efficient?
It uses 32% more electricity than the median certified air purifier.
What does the AIRMEGA AP-1125G cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $24 a year in North Dakota (12.3¢/kWh) and $91 in Hawaii (46.6¢/kWh).

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