WattCost

Data through June 2026

Running cost · Air Purifiers · ENERGY STAR certified

Aerus F185B

At the standardized usage ENERGY STAR assumes, the Aerus F185B consumes 109 kWh a year — about $20 at the U.S. average electricity rate ($1.67 a month). Compared with the median certified air purifier, it uses 26% less electricity — rank 70 out of 225. Where you live moves the bill from $14 a year in Nevada to $57 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria. 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

$20/yr

$5.50 · cheapest certified air purifiers$90 · priciest
Per month
$1.67
Per day
5¢
Certified use
109 kWh/yr
Rated room size
197 sq ft
CADR (smoke)
127
Technology
Fan and Filter
Efficiency
6.9 CFM/W
30 kWh490 kWh
Where the Aerus F185B (▮) sits among all 225 certified air purifiers, by annual kWh

What it costs in every state

Aerus F185B: 109 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$18
Alaska28.2¢$31
Arizona15.2¢$17
Arkansas14.1¢$15
California34.7¢$38
Colorado17.1¢$19
Connecticut24.3¢$27
Delaware19.3¢$21
District of Columbia24.4¢$27
Florida15.1¢$16
Georgia16.4¢$18
Hawaiipriciest52.7¢$57
Idaho14.4¢$16
Illinois19.9¢$22
Indiana17.5¢$19
Iowa15.9¢$17
Kansas15.7¢$17
Kentucky14.3¢$16
Louisiana13.5¢$15
Maine29.6¢$32
Maryland21.8¢$24
Massachusetts29.6¢$32
Michigan23.0¢$25
Minnesota17.5¢$19
Mississippi14.9¢$16
Missouri16.2¢$18
Montana15.1¢$17
Nebraska13.3¢$14
Nevadacheapest13.1¢$14
New Hampshire27.0¢$29
New Jersey24.9¢$27
New Mexico15.1¢$16
New York29.5¢$32
North Carolina14.7¢$16
North Dakota14.1¢$15
Ohio19.2¢$21
Oklahoma14.3¢$16
Oregon16.3¢$18
Pennsylvania21.7¢$24
Rhode Island29.2¢$32
South Carolina15.6¢$17
South Dakota15.4¢$17
Tennessee14.1¢$15
Texas15.9¢$17
Utah13.4¢$15
Vermont24.4¢$27
Virginia17.2¢$19
Washington14.9¢$16
West Virginia15.4¢$17
Wisconsin19.6¢$21
Wyoming15.2¢$17

Certified models closest in efficiency

air purifiers within reach of 109 kWh/yr
ModelkWh/yr$/yr (US avg)
Aeocky LunaPure-EJH001most efficient109$20
Frigidaire FHAP1040A1109$20
Blueair 3232111100110$20
Blueair 3232111101108$20
Blueair 4512311000most efficient110$20
Frigidaire FHAP1020A1108$20

Run your own numbers

Your rate, your numbers

Per day
5¢
Per month
$1.67
Per year
$20

109 kWh/yr × 18.3¢/kWh = $20/yr

Prefilled with this model's certified 109 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 Aerus F185B use?
ENERGY STAR certifies the Aerus F185B at 109 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 Aerus F185B cost to run per month?
About $1.67 a month at the U.S. average residential rate (18.3¢/kWh) — 5¢ a day, or $20 a year. Your state's rate moves this up or down; see the table above.
Is the Aerus F185B energy efficient?
It uses 26% less electricity than the median certified air purifier, placing it in the efficient third of certified models. It also meets ENERGY STAR's Most Efficient criteria.
What does the Aerus F185B cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $14 a year in Nevada (13.1¢/kWh) and $57 in Hawaii (52.7¢/kWh).

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