Cost to Run a Air Purifier in North Carolina
North Carolina's average residential electricity rate is 15.1¢/kWh as of May 2026 — the 18th cheapest in the country, 18% below the U.S. average. At typical usage (24 hours/day (always on)), a air purifier here costs $4.41 per month.
Per hour
0.6¢
at 20–100 W
Per day
$0.14
24 hours/day (always on)
Per month
$4.41
29 kWh
Per year
$52.91
350 kWh
By usage level in North Carolina
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | 7.2¢ | $2.20 | $26.46 |
| Typical (24 hrs/day) | $0.14 | $4.41 | $52.91 |
| Heavy (24 hrs/day) | $0.29 | $8.81 | $106 |
North 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 North Carolina?
At North Carolina's current average residential rate of 15.1¢/kWh (May 2026), a air purifier with typical usage costs about $0.14 per day, $4.41 per month, or $52.91 per year.
Is running a air purifier in North Carolina more expensive than average?
No — it's cheaper. North Carolina's rate is about 18% below the U.S. average: $4.41 per month here versus $5.37 nationally.
What does electricity cost in North Carolina right now?
North Carolina residents pay an average of 15.1¢ per kWh as of May 2026 — the 18th cheapest rate of the 51 U.S. jurisdictions we track.