Cost to Run a Air Purifier in Missouri
Missouri's average residential electricity rate is 13.7¢/kWh as of May 2026 — the 7th cheapest in the country, 26% below the U.S. average. At typical usage (24 hours/day (always on)), a air purifier here costs $4.00 per month.
Per hour
0.5¢
at 20–100 W
Per day
$0.13
24 hours/day (always on)
Per month
$4.00
29 kWh
Per year
$48.00
350 kWh
By usage level in Missouri
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | 6.6¢ | $2.00 | $24.00 |
| Typical (24 hrs/day) | $0.13 | $4.00 | $48.00 |
| Heavy (24 hrs/day) | $0.26 | $8.00 | $96.01 |
Missouri 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 Missouri?
At Missouri's current average residential rate of 13.7¢/kWh (May 2026), a air purifier with typical usage costs about $0.13 per day, $4.00 per month, or $48.00 per year.
Is running a air purifier in Missouri more expensive than average?
No — it's cheaper. Missouri's rate is about 26% below the U.S. average: $4.00 per month here versus $5.37 nationally.
What does electricity cost in Missouri right now?
Missouri residents pay an average of 13.7¢ per kWh as of May 2026 — the 7th cheapest rate of the 51 U.S. jurisdictions we track.