Cost to Run a Air Purifier in Maryland
Maryland's average residential electricity rate is 21.8¢/kWh as of May 2026 — the 37th cheapest in the country, 18% above the U.S. average. At typical usage (24 hours/day (always on)), a air purifier here costs $6.36 per month.
Per hour
0.9¢
at 20–100 W
Per day
$0.21
24 hours/day (always on)
Per month
$6.36
29 kWh
Per year
$76.39
350 kWh
By usage level in Maryland
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | $0.10 | $3.18 | $38.19 |
| Typical (24 hrs/day) | $0.21 | $6.36 | $76.39 |
| Heavy (24 hrs/day) | $0.42 | $12.72 | $153 |
Maryland 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 Maryland?
At Maryland's current average residential rate of 21.8¢/kWh (May 2026), a air purifier with typical usage costs about $0.21 per day, $6.36 per month, or $76.39 per year.
Is running a air purifier in Maryland more expensive than average?
Yes. Maryland's electricity costs about 18% more than the U.S. average, so the same usage costs $6.36 per month here versus $5.37 nationally.
What does electricity cost in Maryland right now?
Maryland residents pay an average of 21.8¢ per kWh as of May 2026 — the 37th cheapest rate of the 51 U.S. jurisdictions we track.