WattCost

Data through April 2026

Cost to run · California · 35.3¢/kWh residential average

How much does it cost to run an air purifier in California?

$52/yr · median certified model

Electricity in California is genuinely expensive — 35.3¢/kWh, 87% above the national average — so the median certified air purifier costs about $52 a year, and efficiency differences between models turn into real money.

California sits at rank 50 of 51 — near the very top of the cost table for an air purifier. At local rates, certified models span $11 (Blueair 4612522000) to $173 (Fellowes Aeramax SV) per year — $162 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median air purifier would cost $18 and $69 a year there.

California
$52
US average
$28
North Dakota
$18
Hawaii
$69
Median certified air purifier (148 kWh/yr) per year, at each rate

The cheapest air purifiers to run at California rates

Top 10 by certified kWh, priced at 35.3¢/kWh
#ModelkWh/yr$/yr in CA
1Blueair 4612522000most efficient30$11
2AeroNova DH-JH01Amost efficient33$12
3AeroNova MK01Amost efficient33$12
4ALROCKET MK01Amost efficient33$12
5AROEVE MK01Amost efficient33$12
6BREEZOME MK01Amost efficient33$12
7Greenlite G-Pure-7Wmost efficient33$12
8KLOUDIC MK01Amost efficient33$12
9REEMKIZZ MK01Amost efficient33$12
10ALROCKET DH-JH020US-A00most efficient36$13

Price any model at California rates

Your rate, your numbers

Per day
14¢
Per month
$4.35
Per year
$52

148 kWh/yr × 35.3¢/kWh = $52/yr

Prefilled with the median certified air purifier (148 kWh/yr). Every model page on this site carries its exact certified figure.

Questions, answered with the data

How much does it cost to run an air purifier in California?
About $52 a year for the median ENERGY STAR certified air purifier, at California's average residential rate of 35.3¢/kWh — that's $4.35 a month.
Is electricity expensive in California?
California's residential average of 35.3¢/kWh is 87% above the U.S. average of 18.8¢/kWh, ranking 50 of 51 jurisdictions (1 = cheapest).
What's the cheapest air purifier to run in California?
Among currently certified models, the Blueair 4612522000 costs the least at about $11 a year at California rates (30 kWh/yr).
How does California compare with other states?
The same median air purifier costs $18 a year in North Dakota (the cheapest state) and $69 in Hawaii (the priciest). California sits at $52.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.