WattCost

Data through April 2026

Cost to run · Missouri · 14.0¢/kWh residential average

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

$21/yr · median certified model

Missouri's 14.0¢/kWh rate undercuts the national average by 26%, so the typical certified air purifier costs roughly $21 a year here instead of $28.

In the national ranking, Missouri lands at 8 of 51 for what an air purifier costs to run. At local rates, certified models span $4.20 (Blueair 4612522000) to $69 (Fellowes Aeramax SV) per year — $64 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.

Missouri
$21
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 Missouri rates

Top 10 by certified kWh, priced at 14.0¢/kWh
#ModelkWh/yr$/yr in MO
1Blueair 4612522000most efficient30$4.20
2AeroNova DH-JH01Amost efficient33$4.62
3AeroNova MK01Amost efficient33$4.62
4ALROCKET MK01Amost efficient33$4.62
5AROEVE MK01Amost efficient33$4.62
6BREEZOME MK01Amost efficient33$4.62
7Greenlite G-Pure-7Wmost efficient33$4.62
8KLOUDIC MK01Amost efficient33$4.62
9REEMKIZZ MK01Amost efficient33$4.62
10ALROCKET DH-JH020US-A00most efficient36$5.04

Price any model at Missouri rates

Your rate, your numbers

Per day
Per month
$1.73
Per year
$21

148 kWh/yr × 14.0¢/kWh = $21/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 Missouri?
About $21 a year for the median ENERGY STAR certified air purifier, at Missouri's average residential rate of 14.0¢/kWh — that's $1.73 a month.
Is electricity expensive in Missouri?
Missouri's residential average of 14.0¢/kWh is 26% below the U.S. average of 18.8¢/kWh, ranking 8 of 51 jurisdictions (1 = cheapest).
What's the cheapest air purifier to run in Missouri?
Among currently certified models, the Blueair 4612522000 costs the least at about $4.20 a year at Missouri rates (30 kWh/yr).
How does Missouri 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). Missouri sits at $21.

Keep digging

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