Air Purifier is an air purification equipment, which is widely used in hospital, small clinic, laboratory, office, meeting room and house etc. it can protect your life and your health through filtering dust, germ and virus in the air. Model QRJ-128 External Size (W*D*H) 900*120*1500 mm Filter HEPA filter (Optional: lysozyme filter) Optimal Space â?¤15m2 Noise