WattCost

Data through April 2026

Running cost · Air Purifiers · ENERGY STAR certified

Midea KJ500G-JA32

At the standardized usage ENERGY STAR assumes, the Midea KJ500G-JA32 consumes 292 kWh a year — about $55 at the U.S. average electricity rate ($4.58 a month). Even among certified models it's on the thirsty end: 97% more electricity than the median air purifier, ranked 172 of 214. The same unit costs $36 a year in North Dakota but $136 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

$55/yr

$5.65 · cheapest certified air purifiers$92 · priciest
Per month
$4.58
Per day
15¢
Certified use
292 kWh/yr
Rated room size
459 sq ft
CADR (smoke)
296
Technology
Fan and Filter
Efficiency
6.1 CFM/W
30 kWh490 kWh
Where the Midea KJ500G-JA32 (▮) sits among all 214 certified air purifiers, by annual kWh

What it costs in every state

Midea KJ500G-JA32: 292 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$51
Alaska27.4¢$80
Arizona15.5¢$45
Arkansas14.2¢$41
California35.3¢$103
Colorado16.5¢$48
Connecticut32.2¢$94
Delaware18.8¢$55
District of Columbia25.4¢$74
Florida15.4¢$45
Georgia15.4¢$45
Hawaiipriciest46.6¢$136
Idaho12.7¢$37
Illinois20.5¢$60
Indiana17.9¢$52
Iowa13.9¢$40
Kansas15.8¢$46
Kentucky15.0¢$44
Louisiana14.4¢$42
Maine28.4¢$83
Maryland22.1¢$64
Massachusetts29.4¢$86
Michigan21.4¢$62
Minnesota16.4¢$48
Mississippi16.8¢$49
Missouri14.0¢$41
Montana13.9¢$41
Nebraska13.3¢$39
Nevada14.3¢$42
New Hampshire27.2¢$80
New Jersey23.5¢$69
New Mexico15.2¢$44
New York29.4¢$86
North Carolina16.3¢$47
North Dakotacheapest12.3¢$36
Ohio19.5¢$57
Oklahoma13.3¢$39
Oregon15.8¢$46
Pennsylvania21.5¢$63
Rhode Island28.3¢$83
South Carolina17.1¢$50
South Dakota14.5¢$42
Tennessee14.9¢$44
Texas17.0¢$50
Utah13.3¢$39
Vermont24.6¢$72
Virginia17.4¢$51
Washington14.4¢$42
West Virginia16.1¢$47
Wisconsin19.2¢$56
Wyoming14.7¢$43

Certified models closest in efficiency

air purifiers within reach of 292 kWh/yr
ModelkWh/yr$/yr (US avg)
PELONIS KJ500G-JA32292$55
Blueair 7411371000294$55
Bosch Air 6000289$54
IQAir ATEM E295$56
Midea KJ500G-L1297$56
Noma 143-0033-2297$56

Run your own numbers

Your rate, your numbers

Per day
15¢
Per month
$4.58
Per year
$55

292 kWh/yr × 18.8¢/kWh = $55/yr

Prefilled with this model's certified 292 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 Midea KJ500G-JA32 use?
ENERGY STAR certifies the Midea KJ500G-JA32 at 292 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 Midea KJ500G-JA32 cost to run per month?
About $4.58 a month at the U.S. average residential rate (18.8¢/kWh) — 15¢ a day, or $55 a year. Your state's rate moves this up or down; see the table above.
Is the Midea KJ500G-JA32 energy efficient?
It uses 97% more electricity than the median certified air purifier, which puts it among the least efficient certified models.
What does the Midea KJ500G-JA32 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $36 a year in North Dakota (12.3¢/kWh) and $136 in Hawaii (46.6¢/kWh).

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