Is electricity expensive in Washington?

Washington's residential average of 14.9¢/kWh is 19% below the U.S. average of 18.3¢/kWh, ranking 13 of 51 jurisdictions (1 = cheapest).

What's the cheapest air purifier to run in Washington?

Among currently certified models, the Blueair 4612522000 costs the least at about $4.47 a year at Washington rates (30 kWh/yr).

How does Washington compare with other states?

The same median air purifier costs $19 a year in Nevada (the cheapest state) and $78 in Hawaii (the priciest). Washington sits at $22.

Data through June 2026

Cost to run · Washington · 14.9¢/kWh residential average

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

$22/yr · median certified model

Residential electricity in Washington runs 14.9¢/kWh — 19% under the U.S. average — putting the median certified air purifier at about $22 a year, versus $27 nationally.

Washington ranks 13 of 51 jurisdictions for air purifier running costs — solidly mid-table. Model choice matters as much as geography: at Washington rates the most efficient certified model (Blueair 4612522000) costs $4.47 a year while the most power-hungry (Fellowes Aeramax SV) costs $73 — a spread of $69 every year. 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.

Washington

$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 Washington rates

Top 10 by certified kWh, priced at 14.9¢/kWh
#	Model	kWh/yr	$/yr in WA
1	Blueair 4612522000most efficient	30	$4.47
2	DREAME CVA10Bmost efficient	32	$4.77
3	AeroNova DH-JH01Amost efficient	33	$4.92
4	AeroNova MK01Amost efficient	33	$4.92
5	ALROCKET MK01Amost efficient	33	$4.92
6	AROEVE MK01Amost efficient	33	$4.92
7	BREEZOME MK01Amost efficient	33	$4.92
8	Greenlite G-Pure-7Wmost efficient	33	$4.92
9	KLOUDIC MK01Amost efficient	33	$4.92
10	REEMKIZZ MK01Amost efficient	33	$4.92

Price any model at Washington rates

Your rate, your numbers

Annual use (kWh)

Electricity rate

Per day: 6¢
Per month: $1.84
Per year: $22

148 kWh/yr × 14.9¢/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 Washington?: About $22 a year for the median ENERGY STAR certified air purifier, at Washington's average residential rate of 14.9¢/kWh — that's $1.84 a month.
Is electricity expensive in Washington?: Washington's residential average of 14.9¢/kWh is 19% below the U.S. average of 18.3¢/kWh, ranking 13 of 51 jurisdictions (1 = cheapest).
What's the cheapest air purifier to run in Washington?: Among currently certified models, the Blueair 4612522000 costs the least at about $4.47 a year at Washington rates (30 kWh/yr).
How does Washington compare with other states?: The same median air purifier costs $19 a year in Nevada (the cheapest state) and $78 in Hawaii (the priciest). Washington sits at $22.

Keep digging

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