WattCost

Data through April 2026

Cost to run · Idaho · 12.7¢/kWh residential average

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

$19/yr · median certified model

Idaho's 12.7¢/kWh rate undercuts the national average by 33%, so the typical certified air purifier costs roughly $19 a year here instead of $28.

Out of all 50 states plus D.C., Idaho is the #2 cheapest place to run an air purifier. At local rates, certified models span $3.81 (Blueair 4612522000) to $62 (Fellowes Aeramax SV) per year — $58 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.

Idaho
$19
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 Idaho rates

Top 10 by certified kWh, priced at 12.7¢/kWh
#ModelkWh/yr$/yr in ID
1Blueair 4612522000most efficient30$3.81
2AeroNova DH-JH01Amost efficient33$4.19
3AeroNova MK01Amost efficient33$4.19
4ALROCKET MK01Amost efficient33$4.19
5AROEVE MK01Amost efficient33$4.19
6BREEZOME MK01Amost efficient33$4.19
7Greenlite G-Pure-7Wmost efficient33$4.19
8KLOUDIC MK01Amost efficient33$4.19
9REEMKIZZ MK01Amost efficient33$4.19
10ALROCKET DH-JH020US-A00most efficient36$4.57

Price any model at Idaho rates

Your rate, your numbers

Per day
Per month
$1.57
Per year
$19

148 kWh/yr × 12.7¢/kWh = $19/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 Idaho?
About $19 a year for the median ENERGY STAR certified air purifier, at Idaho's average residential rate of 12.7¢/kWh — that's $1.57 a month.
Is electricity expensive in Idaho?
Idaho's residential average of 12.7¢/kWh is 33% below the U.S. average of 18.8¢/kWh, ranking 2 of 51 jurisdictions (1 = cheapest).
What's the cheapest air purifier to run in Idaho?
Among currently certified models, the Blueair 4612522000 costs the least at about $3.81 a year at Idaho rates (30 kWh/yr).
How does Idaho 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). Idaho sits at $19.

Keep digging

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