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 STUDY MODE - Patented Study

STUDY MODE - Patented Study Mode produces crisp

you can conveniently charge them all with one charger

the genuine leather cases are handcrafted with care making no two completely alike

Let Your Phone's True Color Shine - X-Ray

Drop Protection - Black

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 STUDY MODE - Patented StudyWelcome 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