Air purifiers are energy-friendly devices. A medium-sized air purifier consumes about 50 watts of electricity. If you run a 50-watt unit for 12 hours a day at the maximum fan speed, it will cost only $2.16 per month at 12 cents/kWh electricity price.
You can easily calculate the air purifier electricity consumption in kWh and USD using:
- Air Purifier power rating (watts or W),
- Hours of daily use (1-24), and
- Your local electricity price (Cents per Kilowatt-hour).
Calculate the electricity usage in kWh and USD from the calculator below:
Formula:
1. Daily Electricity Usage = (Air Purifier Power Rating in watts x Hours of daily use) / 1000
2. Daily Electricity Cost = (Daily Electricity Usage in kWh x Electricity Price in Cents per Kilowatt-hour) / 100
Check out our top picks >>> The 7 Best Energy Star-Rated Air Purifiers.
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