Cost to Run a Air Purifier in South Carolina
South Carolina's average residential electricity rate is 16.2¢/kWh as of May 2026 — the 25th cheapest in the country, 12% below the U.S. average. At typical usage (24 hours/day (always on)), a air purifier here costs $4.73 per month.
Per hour
0.6¢
at 20–100 W
Per day
$0.16
24 hours/day (always on)
Per month
$4.73
29 kWh
Per year
$56.76
350 kWh
By usage level in South Carolina
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | 7.8¢ | $2.36 | $28.38 |
| Typical (24 hrs/day) | $0.16 | $4.73 | $56.76 |
| Heavy (24 hrs/day) | $0.31 | $9.46 | $114 |
South Carolina 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 South Carolina?
At South Carolina's current average residential rate of 16.2¢/kWh (May 2026), a air purifier with typical usage costs about $0.16 per day, $4.73 per month, or $56.76 per year.
Is running a air purifier in South Carolina more expensive than average?
No — it's cheaper. South Carolina's rate is about 12% below the U.S. average: $4.73 per month here versus $5.37 nationally.
What does electricity cost in South Carolina right now?
South Carolina residents pay an average of 16.2¢ per kWh as of May 2026 — the 25th cheapest rate of the 51 U.S. jurisdictions we track.