WattCost

Data through June 2026

Cost to run · Montana · 15.1¢/kWh residential average

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

$22/yr · median certified model

Montana's 15.1¢/kWh rate undercuts the national average by 17%, so the typical certified air purifier costs roughly $22 a year here instead of $27.

Montana ranks 16 of 51 jurisdictions for air purifier running costs — solidly mid-table. At local rates, certified models span $4.54 (Blueair 4612522000) to $74 (Fellowes Aeramax SV) per year — $70 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are Nevada (13.1¢/kWh) and Hawaii (52.7¢/kWh); the same median air purifier would cost $19 and $78 a year there.

Montana
$22
US average
$27
Nevada
$19
Hawaii
$78
Median certified air purifier (148 kWh/yr) per year, at each rate

The cheapest air purifiers to run at Montana rates

Top 10 by certified kWh, priced at 15.1¢/kWh
#ModelkWh/yr$/yr in MT
1Blueair 4612522000most efficient30$4.54
2DREAME CVA10Bmost efficient32$4.84
3AeroNova DH-JH01Amost efficient33$5.00
4AeroNova MK01Amost efficient33$5.00
5ALROCKET MK01Amost efficient33$5.00
6AROEVE MK01Amost efficient33$5.00
7BREEZOME MK01Amost efficient33$5.00
8Greenlite G-Pure-7Wmost efficient33$5.00
9KLOUDIC MK01Amost efficient33$5.00
10REEMKIZZ MK01Amost efficient33$5.00

Price any model at Montana rates

Your rate, your numbers

Per day
6¢
Per month
$1.87
Per year
$22

148 kWh/yr × 15.1¢/kWh = $22/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 Montana?
About $22 a year for the median ENERGY STAR certified air purifier, at Montana's average residential rate of 15.1¢/kWh — that's $1.87 a month.
Is electricity expensive in Montana?
Montana's residential average of 15.1¢/kWh is 17% below the U.S. average of 18.3¢/kWh, ranking 16 of 51 jurisdictions (1 = cheapest).
What's the cheapest air purifier to run in Montana?
Among currently certified models, the Blueair 4612522000 costs the least at about $4.54 a year at Montana rates (30 kWh/yr).
How does Montana compare with other states?
The same median air purifier costs $19 a year in Nevada (the cheapest state) and $78 in Hawaii (the priciest). Montana sits at $22.

Keep digging

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