Bosch Air purifiers: energy use and running cost

The average model uses 181 kWh a year, which costs $38 a year at 21.0¢/kWh.

Most efficient models

ModelkWh/yearCost/year
Bosch Air 100079$17
Bosch Air 2000104$22
Bosch Air 4000124$26
Bosch Air 6000289$61

Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology