Is electricity expensive in Delaware?

Delaware's residential average of 19.3¢/kWh is 5% above the U.S. average of 18.3¢/kWh, ranking 34 of 51 jurisdictions (1 = cheapest).

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

Among currently certified models, the Blueair 4612522000 costs the least at about $5.79 a year at Delaware rates (30 kWh/yr).

How does Delaware compare with other states?

The same median air purifier costs $19 a year in Nevada (the cheapest state) and $78 in Hawaii (the priciest). Delaware sits at $29.

Data through June 2026

Cost to run · Delaware · 19.3¢/kWh residential average

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

$29/yr · median certified model

Delaware's residential rate of 19.3¢/kWh tracks the national average (18.3¢) closely, so national cost figures translate almost directly: a median certified air purifier runs about $29 a year here.

In the national ranking, Delaware lands at 34 of 51 for what an air purifier costs to run. At local rates, certified models span $5.79 (Blueair 4612522000) to $95 (Fellowes Aeramax SV) per year — $89 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.

Delaware

$29

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 Delaware rates

Top 10 by certified kWh, priced at 19.3¢/kWh
#	Model	kWh/yr	$/yr in DE
1	Blueair 4612522000most efficient	30	$5.79
2	DREAME CVA10Bmost efficient	32	$6.17
3	AeroNova DH-JH01Amost efficient	33	$6.37
4	AeroNova MK01Amost efficient	33	$6.37
5	ALROCKET MK01Amost efficient	33	$6.37
6	AROEVE MK01Amost efficient	33	$6.37
7	BREEZOME MK01Amost efficient	33	$6.37
8	Greenlite G-Pure-7Wmost efficient	33	$6.37
9	KLOUDIC MK01Amost efficient	33	$6.37
10	REEMKIZZ MK01Amost efficient	33	$6.37

Price any model at Delaware rates

Your rate, your numbers

Annual use (kWh)

Electricity rate

Per day: 8¢
Per month: $2.38
Per year: $29

148 kWh/yr × 19.3¢/kWh = $29/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 Delaware?: About $29 a year for the median ENERGY STAR certified air purifier, at Delaware's average residential rate of 19.3¢/kWh — that's $2.38 a month.
Is electricity expensive in Delaware?: Delaware's residential average of 19.3¢/kWh is 5% above the U.S. average of 18.3¢/kWh, ranking 34 of 51 jurisdictions (1 = cheapest).
What's the cheapest air purifier to run in Delaware?: Among currently certified models, the Blueair 4612522000 costs the least at about $5.79 a year at Delaware rates (30 kWh/yr).
How does Delaware compare with other states?: The same median air purifier costs $19 a year in Nevada (the cheapest state) and $78 in Hawaii (the priciest). Delaware sits at $29.

Keep digging

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