WattCost

Data through April 2026

Running cost · Air Purifiers · ENERGY STAR certified

Blueair Pure 211+

At the standardized usage ENERGY STAR assumes, the Blueair Pure 211+ consumes 350 kWh a year — about $66 at the U.S. average electricity rate ($5.49 a month). It sits near the bottom of the certified table — using 136% more than the median air purifier (rank 195 of 214) — so the state you live in matters more than usual. The same unit costs $43 a year in North Dakota but $163 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

$66/yr

$5.65 · cheapest certified air purifiers$92 · priciest
Per month
$5.49
Per day
18¢
Certified use
350 kWh/yr
Rated room size
539 sq ft
CADR (smoke)
348
Technology
Ion Generator,Fan and Filter
Efficiency
5.8 CFM/W
30 kWh490 kWh
Where the Blueair Pure 211+ (▮) sits among all 214 certified air purifiers, by annual kWh

What it costs in every state

Blueair Pure 211+: 350 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$61
Alaska27.4¢$96
Arizona15.5¢$54
Arkansas14.2¢$50
California35.3¢$123
Colorado16.5¢$58
Connecticut32.2¢$113
Delaware18.8¢$66
District of Columbia25.4¢$89
Florida15.4¢$54
Georgia15.4¢$54
Hawaiipriciest46.6¢$163
Idaho12.7¢$44
Illinois20.5¢$72
Indiana17.9¢$63
Iowa13.9¢$49
Kansas15.8¢$55
Kentucky15.0¢$53
Louisiana14.4¢$51
Maine28.4¢$99
Maryland22.1¢$77
Massachusetts29.4¢$103
Michigan21.4¢$75
Minnesota16.4¢$57
Mississippi16.8¢$59
Missouri14.0¢$49
Montana13.9¢$49
Nebraska13.3¢$46
Nevada14.3¢$50
New Hampshire27.2¢$95
New Jersey23.5¢$82
New Mexico15.2¢$53
New York29.4¢$103
North Carolina16.3¢$57
North Dakotacheapest12.3¢$43
Ohio19.5¢$68
Oklahoma13.3¢$47
Oregon15.8¢$55
Pennsylvania21.5¢$75
Rhode Island28.3¢$99
South Carolina17.1¢$60
South Dakota14.5¢$51
Tennessee14.9¢$52
Texas17.0¢$59
Utah13.3¢$47
Vermont24.6¢$86
Virginia17.4¢$61
Washington14.4¢$50
West Virginia16.1¢$56
Wisconsin19.2¢$67
Wyoming14.7¢$51

Certified models closest in efficiency

air purifiers within reach of 350 kWh/yr
ModelkWh/yr$/yr (US avg)
Coway Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_344$65
Coway Airmega Airmega 350(W);Airmega 350(BG);Airmega 350(*);AP-1924A_WT;AP-1924A_BG; AP-1924A_344$65
Midea KJ600G-RX600A341$64
PURECODE PAR001341$64
Blueair 6712211000336$63
Coway Airmega Airmega ProX;AP-3522F_US;Airmega ProX(W);Airmega ProX(*);AP-3522F_WT;AP-3522F_most efficient335$63

Run your own numbers

Your rate, your numbers

Per day
18¢
Per month
$5.49
Per year
$66

350 kWh/yr × 18.8¢/kWh = $66/yr

Prefilled with this model's certified 350 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 Blueair Pure 211+ use?
ENERGY STAR certifies the Blueair Pure 211+ at 350 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 Blueair Pure 211+ cost to run per month?
About $5.49 a month at the U.S. average residential rate (18.8¢/kWh) — 18¢ a day, or $66 a year. Your state's rate moves this up or down; see the table above.
Is the Blueair Pure 211+ energy efficient?
It uses 136% more electricity than the median certified air purifier, which puts it among the least efficient certified models.
What does the Blueair Pure 211+ cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $43 a year in North Dakota (12.3¢/kWh) and $163 in Hawaii (46.6¢/kWh).

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