Blueair Mini Signature Air Purifier, 2-Pack with Replacement Filters

This two-pack includes two Blueair Mini Signature air purifiers, each designed to clean the air in rooms up to approximately 248 square feet, with the ability to clean up to 1,200 square feet per hour at an air changes per hour (ACH) rate of 4.8. Each unit uses a single filter that captures pollen, dust, and smoke, with clean air delivery rates (CADR) of 179 cfm for pollen, 167 cfm for dust, and 160 cfm for smoke.

Each purifier measures 13.7 inches high by 9.4 inches wide by 9.4 inches deep, weighs 5.64 pounds, and draws up to 20 watts of energy. Fan speed can be adjusted across four manual levels plus Auto, Night, and Eco modes, with a sound level ranging from 19 dB on the lowest setting to 50 dB on the highest. Air is expelled through a top-mounted outlet.

The unit's fabric-wrapped cylindrical housing features an LED indicator ring near the top of the filter stack, and the design allows filter life to be tracked through an onboard algorithm that factors in fan speed, usage time, and pollution levels; the light turns red when a replacement filter is needed. This set includes replacement filters for continued use after the initial filter reaches the end of its lifespan.