WattCost

Data through June 2026

Cost to run · Maryland · 21.8¢/kWh residential average

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

$32/yr · median certified model

Maryland pays 21.8¢/kWh for residential power — 19% above the national average — lifting the median certified air purifier to about $32 a year, versus $27 nationally.

In the national ranking, Maryland lands at 38 of 51 for what an air purifier costs to run. At local rates, certified models span $6.55 (Blueair 4612522000) to $107 (Fellowes Aeramax SV) per year — $100 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.

Maryland
$32
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 Maryland rates

Top 10 by certified kWh, priced at 21.8¢/kWh
#ModelkWh/yr$/yr in MD
1Blueair 4612522000most efficient30$6.55
2DREAME CVA10Bmost efficient32$6.99
3AeroNova DH-JH01Amost efficient33$7.21
4AeroNova MK01Amost efficient33$7.21
5ALROCKET MK01Amost efficient33$7.21
6AROEVE MK01Amost efficient33$7.21
7BREEZOME MK01Amost efficient33$7.21
8Greenlite G-Pure-7Wmost efficient33$7.21
9KLOUDIC MK01Amost efficient33$7.21
10REEMKIZZ MK01Amost efficient33$7.21

Price any model at Maryland rates

Your rate, your numbers

Per day
9¢
Per month
$2.69
Per year
$32

148 kWh/yr × 21.8¢/kWh = $32/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 $32 a year for the median ENERGY STAR certified air purifier, at Maryland's average residential rate of 21.8¢/kWh — that's $2.69 a month.
Is electricity expensive in Maryland?
Maryland's residential average of 21.8¢/kWh is 19% above the U.S. average of 18.3¢/kWh, ranking 38 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 $6.55 a year at Maryland rates (30 kWh/yr).
How does Maryland compare with other states?
The same median air purifier costs $19 a year in Nevada (the cheapest state) and $78 in Hawaii (the priciest). Maryland sits at $32.

Keep digging

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