WattCost

Data through June 2026

Running cost · Air Purifiers · ENERGY STAR certified

AirDoctor AD4000

The AirDoctor AD4000's certified consumption is 396 kWh per year, which prices out to about $73 at the national average rate — your hours of use scale that directly. Even among certified models it's on the thirsty end: 168% more electricity than the median air purifier, ranked 219 of 225. Where you live moves the bill from $52 a year in Nevada to $209 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

$73/yr

$5.50 · cheapest certified air purifiers$90 · priciest
Per month
$6.06
Per day
20¢
Certified use
396 kWh/yr
Rated room size
574 sq ft
CADR (smoke)
370
Efficiency
5.6 CFM/W
30 kWh490 kWh
Where the AirDoctor AD4000 (▮) sits among all 225 certified air purifiers, by annual kWh

What it costs in every state

AirDoctor AD4000: 396 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$65
Alaska28.2¢$112
Arizona15.2¢$60
Arkansas14.1¢$56
California34.7¢$138
Colorado17.1¢$68
Connecticut24.3¢$96
Delaware19.3¢$76
District of Columbia24.4¢$97
Florida15.1¢$60
Georgia16.4¢$65
Hawaiipriciest52.7¢$209
Idaho14.4¢$57
Illinois19.9¢$79
Indiana17.5¢$69
Iowa15.9¢$63
Kansas15.7¢$62
Kentucky14.3¢$56
Louisiana13.5¢$53
Maine29.6¢$117
Maryland21.8¢$87
Massachusetts29.6¢$117
Michigan23.0¢$91
Minnesota17.5¢$69
Mississippi14.9¢$59
Missouri16.2¢$64
Montana15.1¢$60
Nebraska13.3¢$52
Nevadacheapest13.1¢$52
New Hampshire27.0¢$107
New Jersey24.9¢$99
New Mexico15.1¢$60
New York29.5¢$117
North Carolina14.7¢$58
North Dakota14.1¢$56
Ohio19.2¢$76
Oklahoma14.3¢$57
Oregon16.3¢$65
Pennsylvania21.7¢$86
Rhode Island29.2¢$116
South Carolina15.6¢$62
South Dakota15.4¢$61
Tennessee14.1¢$56
Texas15.9¢$63
Utah13.4¢$53
Vermont24.4¢$97
Virginia17.2¢$68
Washington14.9¢$59
West Virginia15.4¢$61
Wisconsin19.6¢$77
Wyoming15.2¢$60

Certified models closest in efficiency

air purifiers within reach of 396 kWh/yr
ModelkWh/yr$/yr (US avg)
Coway Airmega 450S(W);Airmega 450S(BG);Airmega 450S(*);AP-2524C_WT;AP-2524C_BG; AP-2524C _399$73
Coway Airmega Airmega 450S(W);Airmega 450S(BG);Airmega 450S(*);AP-2524C_WT;AP-2524C_BG; AP-2524C _399$73
Coway Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_389$71
Coway Airmega Airmega 450(W);Airmega 450(BG);Airmega 450(*);AP-2524B_WT;AP-2524B_BG; AP-2524B_389$71
LEVOIT LAP-C601S-WUSR389$71
CUCKOO CAC-AH2810FNW388$71

Run your own numbers

Your rate, your numbers

Per day
20¢
Per month
$6.05
Per year
$73

396 kWh/yr × 18.3¢/kWh = $73/yr

Prefilled with this model's certified 396 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 AirDoctor AD4000 use?
ENERGY STAR certifies the AirDoctor AD4000 at 396 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 AirDoctor AD4000 cost to run per month?
About $6.06 a month at the U.S. average residential rate (18.3¢/kWh) — 20¢ a day, or $73 a year. Your state's rate moves this up or down; see the table above.
Is the AirDoctor AD4000 energy efficient?
It uses 168% more electricity than the median certified air purifier, which puts it among the least efficient certified models.
What does the AirDoctor AD4000 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $52 a year in Nevada (13.1¢/kWh) and $209 in Hawaii (52.7¢/kWh).

Keep digging