WattCost

Data through April 2026

Cost to run · North Dakota · 12.3¢/kWh residential average

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

$18/yr · median certified model

Residential electricity in North Dakota runs 12.3¢/kWh — 34% under the U.S. average — putting the median certified air purifier at about $18 a year, versus $28 nationally.

That makes North Dakota the #1 cheapest of the 51 U.S. jurisdictions for running an air purifier. At local rates, certified models span $3.71 (Blueair 4612522000) to $61 (Fellowes Aeramax SV) per year — $57 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.

North Dakota
$18
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 North Dakota rates

Top 10 by certified kWh, priced at 12.3¢/kWh
#ModelkWh/yr$/yr in ND
1Blueair 4612522000most efficient30$3.71
2AeroNova DH-JH01Amost efficient33$4.08
3AeroNova MK01Amost efficient33$4.08
4ALROCKET MK01Amost efficient33$4.08
5AROEVE MK01Amost efficient33$4.08
6BREEZOME MK01Amost efficient33$4.08
7Greenlite G-Pure-7Wmost efficient33$4.08
8KLOUDIC MK01Amost efficient33$4.08
9REEMKIZZ MK01Amost efficient33$4.08
10ALROCKET DH-JH020US-A00most efficient36$4.45

Price any model at North Dakota rates

Your rate, your numbers

Per day
Per month
$1.52
Per year
$18

148 kWh/yr × 12.3¢/kWh = $18/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 North Dakota?
About $18 a year for the median ENERGY STAR certified air purifier, at North Dakota's average residential rate of 12.3¢/kWh — that's $1.52 a month.
Is electricity expensive in North Dakota?
North Dakota's residential average of 12.3¢/kWh is 34% below the U.S. average of 18.8¢/kWh, ranking 1 of 51 jurisdictions (1 = cheapest).
What's the cheapest air purifier to run in North Dakota?
Among currently certified models, the Blueair 4612522000 costs the least at about $3.71 a year at North Dakota rates (30 kWh/yr).
How does North Dakota 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). North Dakota sits at $18.

Keep digging

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