WattCost

Data through June 2026

Running cost · Air Purifiers · ENERGY STAR certified

Sharp KCP70UW

The Sharp KCP70UW's certified consumption is 225 kWh per year, which prices out to about $41 at the national average rate — your hours of use scale that directly. That's close to the middle of the certified pack — about 52% above the median air purifier, ranked 156 of 225. Where you live moves the bill from $29 a year in Nevada to $119 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

$41/yr

$5.50 · cheapest certified air purifiers$90 · priciest
Per month
$3.44
Per day
11¢
Certified use
225 kWh/yr
Rated room size
395 sq ft
CADR (smoke)
255
Technology
Fan and Filter
Efficiency
6.7 CFM/W
30 kWh490 kWh
Where the Sharp KCP70UW (▮) sits among all 225 certified air purifiers, by annual kWh

What it costs in every state

Sharp KCP70UW: 225 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$37
Alaska28.2¢$63
Arizona15.2¢$34
Arkansas14.1¢$32
California34.7¢$78
Colorado17.1¢$39
Connecticut24.3¢$55
Delaware19.3¢$43
District of Columbia24.4¢$55
Florida15.1¢$34
Georgia16.4¢$37
Hawaiipriciest52.7¢$119
Idaho14.4¢$32
Illinois19.9¢$45
Indiana17.5¢$39
Iowa15.9¢$36
Kansas15.7¢$35
Kentucky14.3¢$32
Louisiana13.5¢$30
Maine29.6¢$67
Maryland21.8¢$49
Massachusetts29.6¢$67
Michigan23.0¢$52
Minnesota17.5¢$39
Mississippi14.9¢$33
Missouri16.2¢$36
Montana15.1¢$34
Nebraska13.3¢$30
Nevadacheapest13.1¢$29
New Hampshire27.0¢$61
New Jersey24.9¢$56
New Mexico15.1¢$34
New York29.5¢$66
North Carolina14.7¢$33
North Dakota14.1¢$32
Ohio19.2¢$43
Oklahoma14.3¢$32
Oregon16.3¢$37
Pennsylvania21.7¢$49
Rhode Island29.2¢$66
South Carolina15.6¢$35
South Dakota15.4¢$35
Tennessee14.1¢$32
Texas15.9¢$36
Utah13.4¢$30
Vermont24.4¢$55
Virginia17.2¢$39
Washington14.9¢$34
West Virginia15.4¢$35
Wisconsin19.6¢$44
Wyoming15.2¢$34

Certified models closest in efficiency

air purifiers within reach of 225 kWh/yr
ModelkWh/yr$/yr (US avg)
Blueair 3432111100most efficient227$42
Blueair 5431111000220$40
Coway Airmega AP-1523D219$40
Coway AP-1523D219$40
Danby DAP290BAW218$40
LAGO LAPKJ500GTB32218$40

Run your own numbers

Your rate, your numbers

Per day
11¢
Per month
$3.44
Per year
$41

225 kWh/yr × 18.3¢/kWh = $41/yr

Prefilled with this model's certified 225 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 Sharp KCP70UW use?
ENERGY STAR certifies the Sharp KCP70UW at 225 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 Sharp KCP70UW cost to run per month?
About $3.44 a month at the U.S. average residential rate (18.3¢/kWh) — 11¢ a day, or $41 a year. Your state's rate moves this up or down; see the table above.
Is the Sharp KCP70UW energy efficient?
It uses 52% more electricity than the median certified air purifier.
What does the Sharp KCP70UW cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $29 a year in Nevada (13.1¢/kWh) and $119 in Hawaii (52.7¢/kWh).

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