WattCost

Data through June 2026

Running cost · Air Purifiers · ENERGY STAR certified

Coway AP-1515H

The Coway AP-1515H's certified consumption is 314 kWh per year, which prices out to about $58 at the national average rate — your hours of use scale that directly. It sits near the bottom of the certified table — using 112% more than the median air purifier (rank 194 of 225) — so the state you live in matters more than usual. Where you live moves the bill from $41 a year in Nevada to $166 in Hawaii. Note the certified pool here is small (225 models), so rankings shift more with each data refresh.

Estimated annual running cost · U.S. average rate 18.3¢/kWh

$58/yr

$5.50 · cheapest certified air purifiers$90 · priciest
Per month
$4.80
Per day
16¢
Certified use
314 kWh/yr
Rated room size
488 sq ft
CADR (smoke)
315
Technology
Fan and Filter
Efficiency
6 CFM/W
30 kWh490 kWh
Where the Coway AP-1515H (▮) sits among all 225 certified air purifiers, by annual kWh

What it costs in every state

Coway AP-1515H: 314 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$51
Alaska28.2¢$89
Arizona15.2¢$48
Arkansas14.1¢$44
California34.7¢$109
Colorado17.1¢$54
Connecticut24.3¢$76
Delaware19.3¢$61
District of Columbia24.4¢$77
Florida15.1¢$47
Georgia16.4¢$51
Hawaiipriciest52.7¢$166
Idaho14.4¢$45
Illinois19.9¢$62
Indiana17.5¢$55
Iowa15.9¢$50
Kansas15.7¢$49
Kentucky14.3¢$45
Louisiana13.5¢$42
Maine29.6¢$93
Maryland21.8¢$69
Massachusetts29.6¢$93
Michigan23.0¢$72
Minnesota17.5¢$55
Mississippi14.9¢$47
Missouri16.2¢$51
Montana15.1¢$48
Nebraska13.3¢$42
Nevadacheapest13.1¢$41
New Hampshire27.0¢$85
New Jersey24.9¢$78
New Mexico15.1¢$47
New York29.5¢$93
North Carolina14.7¢$46
North Dakota14.1¢$44
Ohio19.2¢$60
Oklahoma14.3¢$45
Oregon16.3¢$51
Pennsylvania21.7¢$68
Rhode Island29.2¢$92
South Carolina15.6¢$49
South Dakota15.4¢$48
Tennessee14.1¢$44
Texas15.9¢$50
Utah13.4¢$42
Vermont24.4¢$77
Virginia17.2¢$54
Washington14.9¢$47
West Virginia15.4¢$49
Wisconsin19.6¢$61
Wyoming15.2¢$48

Certified models closest in efficiency

air purifiers within reach of 314 kWh/yr
ModelkWh/yr$/yr (US avg)
AIRMEGA AP-1515H314$58
Coway Airmega AP-1515H314$58
CUCKOO CAC-D2020FW316$58
CleanForce CP-Rainbow309$57
Alen BreatheSmart 75i_V2304$56
CUCKOO CAC-K1910FW325$60

Run your own numbers

Your rate, your numbers

Per day
16¢
Per month
$4.80
Per year
$58

314 kWh/yr × 18.3¢/kWh = $58/yr

Prefilled with this model's certified 314 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 Coway AP-1515H use?
ENERGY STAR certifies the Coway AP-1515H at 314 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 Coway AP-1515H cost to run per month?
About $4.80 a month at the U.S. average residential rate (18.3¢/kWh) — 16¢ a day, or $58 a year. Your state's rate moves this up or down; see the table above.
Is the Coway AP-1515H energy efficient?
It uses 112% more electricity than the median certified air purifier, which puts it among the least efficient certified models.
What does the Coway AP-1515H cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $41 a year in Nevada (13.1¢/kWh) and $166 in Hawaii (52.7¢/kWh).

Keep digging