Philips AC4221 Smart Air Purifier For Home|Real Time AQI Display|Covers Upto 700 Sqft|Removes 99.97% Of Virus,Allergen,Dust & Pm2.5|50% Quieter|Filter Life Upto 9000 Hrs|Ideal For Living Room, Grey REFURBISHED the ergonomic wireless keyboard shaped

the ergonomic wireless keyboard shaped to help workdays go easier on you

5 (GNA) technology helps with noise suppression while enhancing background blurring during video chats

Batteries: 2 AA Batteries Required (Batteries Not included and sold separately)

so that you & your family never run out of fresh & safe RO water

Philips AC4221 Smart Air Purifier For Home|Real Time AQI Display|Covers Upto 700 Sqft|Removes 99.97% Of Virus,Allergen,Dust & Pm2.5|50% Quieter|Filter Life Upto 9000 Hrs|Ideal For Living Room, Grey REFURBISHED the ergonomic wireless keyboard shapedFeatures IDEAL PURIFIER FOR LIVING ROOM: Large coverage of up to 72 m(700 sqft), it purifies a standard room in just 5 minutes with a CADR of 600 m h (Standard room size is 18 ft by 12 ft with an 8 ft ceiling height) 4 LAYER HEPA FILTRATION: 4 layer filtration made of pre filter, HEPA NanoProtect and double Active Carbon layer captures 99. 97% of particles as small as 0. 003 microns (PM0. 003) to protect from pollen, dust, pet dander, smog or gases