Philips' Air Purifier S2000 provides the ultimate air purification for pollutions and air-born allergens like dust, mites, mould, odour, pet dander, and other fine particles. It offers a supreme clean air efficiency of CADR 333m3/h, has class leading Philips Aerasense Technology, and a colour ring that lights up in real time to reflect any change in air quality. It provides PM25 feedback, has four fan speeds, and is suitable for living, kitchen and dining rooms that are around 79m� in size.