Cost to Run a Air Purifier in Washington, D.C.
Washington, D.C.'s average residential electricity rate is 25.2¢/kWh as of July 2026 — the 42nd cheapest in the country, 38% above the U.S. average. At typical usage (24 hours/day (always on)), a air purifier here costs $7.35 per month.
Per hour
1.0¢
at 20–100 W
Per day
$0.24
24 hours/day (always on)
Per month
$7.35
29 kWh
Per year
$88.30
350 kWh
By usage level in Washington, D.C.
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | $0.12 | $3.68 | $44.15 |
| Typical (24 hrs/day) | $0.24 | $7.35 | $88.30 |
| Heavy (24 hrs/day) | $0.48 | $14.71 | $177 |
Washington, D.C. vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a air purifier in Washington, D.C.?
At Washington, D.C.'s current average residential rate of 25.2¢/kWh (July 2026), a air purifier with typical usage costs about $0.24 per day, $7.35 per month, or $88.30 per year.
Is running a air purifier in Washington, D.C. more expensive than average?
Yes. Washington, D.C.'s electricity costs about 38% more than the U.S. average, so the same usage costs $7.35 per month here versus $5.34 nationally.
What does electricity cost in Washington, D.C. right now?
Washington, D.C. residents pay an average of 25.2¢ per kWh as of July 2026 — the 42nd cheapest rate of the 51 U.S. jurisdictions we track.