Data through April 2026
Cost to run · Illinois · 20.5¢/kWh residential average
How much does it cost to run an air purifier in Illinois?
$30/yr · median certified model
Illinois's residential rate of 20.5¢/kWh tracks the national average (18.8¢) closely, so national cost figures translate almost directly: a median certified air purifier runs about $30 a year here.
In the national ranking, Illinois lands at 36 of 51 for what an air purifier costs to run. At local rates, certified models span $6.14 (Blueair 4612522000) to $100 (Fellowes Aeramax SV) per year — $94 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median air purifier would cost $18 and $69 a year there.
The cheapest air purifiers to run at Illinois rates
| # | Model | kWh/yr | $/yr in IL |
|---|---|---|---|
| 1 | Blueair 4612522000most efficient | 30 | $6.14 |
| 2 | AeroNova DH-JH01Amost efficient | 33 | $6.76 |
| 3 | AeroNova MK01Amost efficient | 33 | $6.76 |
| 4 | ALROCKET MK01Amost efficient | 33 | $6.76 |
| 5 | AROEVE MK01Amost efficient | 33 | $6.76 |
| 6 | BREEZOME MK01Amost efficient | 33 | $6.76 |
| 7 | Greenlite G-Pure-7Wmost efficient | 33 | $6.76 |
| 8 | KLOUDIC MK01Amost efficient | 33 | $6.76 |
| 9 | REEMKIZZ MK01Amost efficient | 33 | $6.76 |
| 10 | ALROCKET DH-JH020US-A00most efficient | 36 | $7.37 |
Price any model at Illinois rates
Your rate, your numbers
- Per day
- 8¢
- Per month
- $2.52
- Per year
- $30
148 kWh/yr × 20.5¢/kWh = $30/yr
Prefilled with the median certified air purifier (148 kWh/yr). Every model page on this site carries its exact certified figure.
Questions, answered with the data
- How much does it cost to run an air purifier in Illinois?
- About $30 a year for the median ENERGY STAR certified air purifier, at Illinois's average residential rate of 20.5¢/kWh — that's $2.52 a month.
- Is electricity expensive in Illinois?
- Illinois's residential average of 20.5¢/kWh is 9% above the U.S. average of 18.8¢/kWh, ranking 36 of 51 jurisdictions (1 = cheapest).
- What's the cheapest air purifier to run in Illinois?
- Among currently certified models, the Blueair 4612522000 costs the least at about $6.14 a year at Illinois rates (30 kWh/yr).
- How does Illinois compare with other states?
- The same median air purifier costs $18 a year in North Dakota (the cheapest state) and $69 in Hawaii (the priciest). Illinois sits at $30.
Keep digging
- All certified air purifiers compared
- Air Purifiers costs in Wisconsin (rank 34 of 51)
- Air Purifiers costs in Ohio (rank 35 of 51)
- Air Purifiers costs in Michigan (rank 37 of 51)
- Air Purifiers costs in Pennsylvania (rank 38 of 51)
- Running a clothes dryer in Illinois
- Running a clothes washer in Illinois
- Running a computer monitor in Illinois
- Running a dehumidifier in Illinois
Rate source: US EIA, average residential price of electricity, see methodology.