WattCost

Data through June 2026

Running cost · Air Purifiers · ENERGY STAR certified

LEVOIT Core 400S

The LEVOIT Core 400S's certified consumption is 237 kWh per year, which prices out to about $43 at the national average rate — your hours of use scale that directly. That's close to the middle of the certified pack — about 60% above the median air purifier, ranked 163 of 225. The same unit costs $31 a year in Nevada but $125 in Hawaii — electricity rates, not the appliance, make the difference. 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

$43/yr

$5.50 · cheapest certified air purifiers$90 · priciest
Per month
$3.62
Per day
12¢
Certified use
237 kWh/yr
Rated room size
358 sq ft
CADR (smoke)
231
Technology
Fan and Filter
Efficiency
5.8 CFM/W
30 kWh490 kWh
Where the LEVOIT Core 400S (▮) sits among all 225 certified air purifiers, by annual kWh

What it costs in every state

LEVOIT Core 400S: 237 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$39
Alaska28.2¢$67
Arizona15.2¢$36
Arkansas14.1¢$33
California34.7¢$82
Colorado17.1¢$41
Connecticut24.3¢$58
Delaware19.3¢$46
District of Columbia24.4¢$58
Florida15.1¢$36
Georgia16.4¢$39
Hawaiipriciest52.7¢$125
Idaho14.4¢$34
Illinois19.9¢$47
Indiana17.5¢$41
Iowa15.9¢$38
Kansas15.7¢$37
Kentucky14.3¢$34
Louisiana13.5¢$32
Maine29.6¢$70
Maryland21.8¢$52
Massachusetts29.6¢$70
Michigan23.0¢$54
Minnesota17.5¢$42
Mississippi14.9¢$35
Missouri16.2¢$38
Montana15.1¢$36
Nebraska13.3¢$31
Nevadacheapest13.1¢$31
New Hampshire27.0¢$64
New Jersey24.9¢$59
New Mexico15.1¢$36
New York29.5¢$70
North Carolina14.7¢$35
North Dakota14.1¢$33
Ohio19.2¢$45
Oklahoma14.3¢$34
Oregon16.3¢$39
Pennsylvania21.7¢$52
Rhode Island29.2¢$69
South Carolina15.6¢$37
South Dakota15.4¢$36
Tennessee14.1¢$33
Texas15.9¢$38
Utah13.4¢$32
Vermont24.4¢$58
Virginia17.2¢$41
Washington14.9¢$35
West Virginia15.4¢$37
Wisconsin19.6¢$46
Wyoming15.2¢$36

Certified models closest in efficiency

air purifiers within reach of 237 kWh/yr
ModelkWh/yr$/yr (US avg)
Blueair 4312111000most efficient235$43
Coway AP-3018Bmost efficient235$43
LEVOIT LAP-C401S-WUSR235$43
Winix C610235$43
Winix C710235$43
Amazon Basics AP5110-UL240$44

Run your own numbers

Your rate, your numbers

Per day
12¢
Per month
$3.62
Per year
$43

237 kWh/yr × 18.3¢/kWh = $43/yr

Prefilled with this model's certified 237 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 LEVOIT Core 400S use?
ENERGY STAR certifies the LEVOIT Core 400S at 237 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 LEVOIT Core 400S cost to run per month?
About $3.62 a month at the U.S. average residential rate (18.3¢/kWh) — 12¢ a day, or $43 a year. Your state's rate moves this up or down; see the table above.
Is the LEVOIT Core 400S energy efficient?
It uses 60% more electricity than the median certified air purifier.
What does the LEVOIT Core 400S cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $31 a year in Nevada (13.1¢/kWh) and $125 in Hawaii (52.7¢/kWh).

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