Cost to Run a Air Purifier in California
California's average residential electricity rate is 35.3¢/kWh as of April 2026 — the 50th cheapest in the country, 88% above the U.S. average. At typical usage (24 hours/day (always on)), a air purifier here costs $10.30 per month.
Per hour
1.4¢
at 20–100 W
Per day
$0.34
24 hours/day (always on)
Per month
$10.30
29 kWh
Per year
$124
350 kWh
By usage level in California
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | $0.17 | $5.15 | $61.85 |
| Typical (24 hrs/day) | $0.34 | $10.30 | $124 |
| Heavy (24 hrs/day) | $0.68 | $20.60 | $247 |
California 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 California?
At California's current average residential rate of 35.3¢/kWh (April 2026), a air purifier with typical usage costs about $0.34 per day, $10.30 per month, or $124 per year.
Is running a air purifier in California more expensive than average?
Yes. California's electricity costs about 88% more than the U.S. average, so the same usage costs $10.30 per month here versus $5.49 nationally.
What does electricity cost in California right now?
California residents pay an average of 35.3¢ per kWh as of April 2026 — the 50th cheapest rate of the 51 U.S. jurisdictions we track.