WattCost

Data through June 2026

Category · 225 certified models

Air Purifiers: what they cost to run

How much an air purifier costs depends heavily on your hours of use; the certified figures assume a standardized duty cycle so models can be compared fairly. On that basis, the 225 certified models span $5.50 to $90 a year at the U.S. average rate, median $27.

Efficiency here is airflow per watt (CADR/W) — a right-sized unit run on auto usually beats an oversized one run flat out. Every figure on this page comes from ENERGY STAR's certified test data — the 30–490 kWh/yr range you see is measured, not estimated.

Median cost
$27/yr
Cheapest model
$5.50/yr
Priciest model
$90/yr
30 kWh490 kWh
Distribution of certified annual kWh across 225 air purifiers

The 20 most efficient to run

Lowest certified annual kWh among all air purifiers
#ModelkWh/yr$/yr (US avg)
1Blueair 4612522000most efficient30$5.50
2DREAME CVA10Bmost efficient32$5.87
3AeroNova DH-JH01Amost efficient33$6.05
4AeroNova MK01Amost efficient33$6.05
5ALROCKET MK01Amost efficient33$6.05
6AROEVE MK01Amost efficient33$6.05
7BREEZOME MK01Amost efficient33$6.05
8Greenlite G-Pure-7Wmost efficient33$6.05
9KLOUDIC MK01Amost efficient33$6.05
10REEMKIZZ MK01Amost efficient33$6.05
11ALROCKET DH-JH020US-A00most efficient36$6.60
12AROEVE DH-JH020US-A00most efficient36$6.60
13BREEZOME DH-JH020US-A00most efficient36$6.60
14KLOUDIC DH-JH020US-A00most efficient36$6.60
15REEMKIZZ DH-JH020US-A00most efficient36$6.60
16TABYIK DH-JH020US-A00most efficient36$6.60
17VOOPNU DH-JH020US-A00most efficient36$6.60
18LEVOIT LAP-C171-QUSR39$7.21
19MoreLite MLRAP-2000Wmost efficient40$7.34
20GoveeLife H7126most efficient42$7.70

Typical cost by state

Median certified air purifier (148 kWh/yr) at each state's average residential rate
StateRate ¢/kWhMedian $/yrRelative cost
Alabama16.4¢$24
Alaska28.2¢$42
Arizona15.2¢$22
Arkansas14.1¢$21
California34.7¢$51
Colorado17.1¢$25
Connecticut24.3¢$36
Delaware19.3¢$29
District of Columbia24.4¢$36
Florida15.1¢$22
Georgia16.4¢$24
Hawaiipriciest52.7¢$78
Idaho14.4¢$21
Illinois19.9¢$29
Indiana17.5¢$26
Iowa15.9¢$24
Kansas15.7¢$23
Kentucky14.3¢$21
Louisiana13.5¢$20
Maine29.6¢$44
Maryland21.8¢$32
Massachusetts29.6¢$44
Michigan23.0¢$34
Minnesota17.5¢$26
Mississippi14.9¢$22
Missouri16.2¢$24
Montana15.1¢$22
Nebraska13.3¢$20
Nevadacheapest13.1¢$19
New Hampshire27.0¢$40
New Jersey24.9¢$37
New Mexico15.1¢$22
New York29.5¢$44
North Carolina14.7¢$22
North Dakota14.1¢$21
Ohio19.2¢$28
Oklahoma14.3¢$21
Oregon16.3¢$24
Pennsylvania21.7¢$32
Rhode Island29.2¢$43
South Carolina15.6¢$23
South Dakota15.4¢$23
Tennessee14.1¢$21
Texas15.9¢$24
Utah13.4¢$20
Vermont24.4¢$36
Virginia17.2¢$25
Washington14.9¢$22
West Virginia15.4¢$23
Wisconsin19.6¢$29
Wyoming15.2¢$23

How to read these numbers

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. Full methodology and limitations →

Browse Air Purifiers by Brand

Browse Air Purifiers by Efficiency

Questions, answered with the data

How much does an air purifier cost to run per year?
The median ENERGY STAR certified air purifier costs about $27 a year at the U.S. average rate (18.3¢/kWh). Across all 225 certified models, costs range from $5.50 to $90.
How much electricity does an air purifier use?
Certified models use between 30 and 490 kWh per year (median 148). 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.
Where is an air purifier cheapest and most expensive to run?
Nevada has the lowest residential rate (13.1¢/kWh), putting the median air purifier at $19 a year; Hawaii (52.7¢/kWh) is the most expensive at $78.
What makes one air purifier cheaper to run than another?
Efficiency here is airflow per watt (CADR/W) — a right-sized unit run on auto usually beats an oversized one run flat out.

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