WattCost

Data through April 2026

Cost to run · Maryland · 22.1¢/kWh residential average

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

$33/yr · median certified model

Maryland pays 22.1¢/kWh for residential power — 17% above the national average — lifting the median certified air purifier to about $33 a year, versus $28 nationally.

In the national ranking, Maryland lands at 39 of 51 for what an air purifier costs to run. At local rates, certified models span $6.62 (Blueair 4612522000) to $108 (Fellowes Aeramax SV) per year — $102 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.

Maryland
$33
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 Maryland rates

Top 10 by certified kWh, priced at 22.1¢/kWh
#ModelkWh/yr$/yr in MD
1Blueair 4612522000most efficient30$6.62
2AeroNova DH-JH01Amost efficient33$7.28
3AeroNova MK01Amost efficient33$7.28
4ALROCKET MK01Amost efficient33$7.28
5AROEVE MK01Amost efficient33$7.28
6BREEZOME MK01Amost efficient33$7.28
7Greenlite G-Pure-7Wmost efficient33$7.28
8KLOUDIC MK01Amost efficient33$7.28
9REEMKIZZ MK01Amost efficient33$7.28
10ALROCKET DH-JH020US-A00most efficient36$7.95

Price any model at Maryland rates

Your rate, your numbers

Per day
Per month
$2.72
Per year
$33

148 kWh/yr × 22.1¢/kWh = $33/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 Maryland?
About $33 a year for the median ENERGY STAR certified air purifier, at Maryland's average residential rate of 22.1¢/kWh — that's $2.72 a month.
Is electricity expensive in Maryland?
Maryland's residential average of 22.1¢/kWh is 17% above the U.S. average of 18.8¢/kWh, ranking 39 of 51 jurisdictions (1 = cheapest).
What's the cheapest air purifier to run in Maryland?
Among currently certified models, the Blueair 4612522000 costs the least at about $6.62 a year at Maryland rates (30 kWh/yr).
How does Maryland 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). Maryland sits at $33.

Keep digging

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