Cost to Run a Air Purifier in Missouri
Missouri's average residential electricity rate is 14¢/kWh as of April 2026 — the 8th cheapest in the country, 26% below the U.S. average. At typical usage (24 hours/day (always on)), a air purifier here costs $4.09 per month.
Per hour
0.6¢
at 20–100 W
Per day
$0.13
24 hours/day (always on)
Per month
$4.09
29 kWh
Per year
$49.06
350 kWh
By usage level in Missouri
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | 6.7¢ | $2.04 | $24.53 |
| Typical (24 hrs/day) | $0.13 | $4.09 | $49.06 |
| Heavy (24 hrs/day) | $0.27 | $8.17 | $98.11 |
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 14¢/kWh (April 2026), a air purifier with typical usage costs about $0.13 per day, $4.09 per month, or $49.06 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: $4.09 per month here versus $5.49 nationally.
What does electricity cost in Missouri right now?
Missouri residents pay an average of 14¢ per kWh as of April 2026 — the 8th cheapest rate of the 51 U.S. jurisdictions we track.