Dyson Purifier Hot+Cool Gen1 Hot+Cool Air Purifier White/White (HP10 WW) Removes 99.95% of ultrafine particles as small as PM0.1¹. Removes viruses³, pollen, and house dust while quickly and thoroughly heating the entire room⁶. In summer, it functions as a fan, cooling you while purifying the air. Product Specifications Body Weight 5.29 kg Minimum / Maximum Operating Noise (dB) 23.8 dB / 49 dB Air Purification Capacity / Applicable Floor Area 8 tatami mats* (30 minutes) / 25 tatami mats** (60 minutes) (Approximate time to purify 8 tatami mats: 28 minutes*) Minimum / Maximum Power Consumption (W) Cooling Mode: 2 / 50 Heating Mode: 1,400 Width 248 mm Height 764 mm Depth 248 mm