... C. .big LCD with back light A ,Application:Home, Living room, hotel, school, clinic,hospital, kitchen, warehouse, garage, restaurant, bar, ... Advantages:1,7stages of air purification process2, Five Speed fan3, Room size selection five level adjustablepurifier (activated oxygen)4, Easy ... below) Factory view: On the show: O Our testing room and equipment: Our professional team: We are looking forward to ...