Blueair Signature Blue 4.0 Air Purifier for Extra Large Rooms, Cleans 3,412 sqft in 1 Hour, 7-Stage Filtration, 10x Odor Removal, HEPASilent for Virus, Pets, Dust, Smoke, Smart WiFi - Light Grey Bluetooth 5.2 WASHABLE FABRIC FILTER: The pre-filters

WASHABLE FABRIC FILTER: The pre-filters extend the life of primary filters

you can conveniently charge them all with one charger

stand-alone USB charger for iPhone

A seamless wrap of Impact Foam padding provides top to bottom protection

Proprietary Impact Rubber Polymer

Blueair Signature Blue 4.0 Air Purifier for Extra Large Rooms, Cleans 3,412 sqft in 1 Hour, 7-Stage Filtration, 10x Odor Removal, HEPASilent for Virus, Pets, Dust, Smoke, Smart WiFi - Light Grey Bluetooth 5.2 WASHABLE FABRIC FILTER: The pre-filtersWelcome to the next generation of air purification with Blue Signature the most powerful, compact & customizable air purifier you can get. Blue Signature features an advanced 7 stage filtration system that captures 99. 97% of airborne pollutants, including dust, pollen, smoke, and pet dander. What sets it apart is its OdorFence Technology, with double the filter media and a patent pending formulation that breaks down odor causing gases at a molecular