An air purifier’s power consumption is a critical factor influencing its operating cost. This consumption, typically measured in watts, dictates the electricity used over a given period. For instance, a 50-watt air purifier running continuously for 24 hours consumes 1.2 kilowatt-hours (kWh) of electricity. This translates directly into an expense dependent on local electricity rates.
Understanding an air purifier’s electricity usage allows consumers to make informed purchasing decisions, balancing performance with long-term operational costs. Historically, air purifiers were relatively energy-intensive appliances. Advancements in motor technology and filtration efficiency have significantly reduced their power consumption, making them more economical to operate. This efficiency contributes not only to lower household expenses but also to a smaller environmental footprint through reduced electricity demand.