Air purifier running cost and filter schedule

Enter your own numbers (the label on the purifier shows the watts, your electricity bill shows the price per kWh). Nothing is stored.

The money figures are plain arithmetic on what you enter: kWh per day = watts × hours ÷ 1000; cost = kWh × price; filters per year = 12 ÷ life in months. The EPA says manufacturers typically recommend filter replacement every 60 to 90 days and to replace filters according to the manufacturer's recommendations, so use the interval in your manual.

Source: EPA, Guide to Air Cleaners in the Home, checked November 10, 2026.

General information only. These tools give estimates from the figures shown and what you enter. They are not medical advice and do not replace the maker's manual. Nothing you type is stored or sent.