The GREE dehumidifier is used to reduce excess humidity or dampness in a room. It draws moisture from the air and collects it in the tank below. Benefits: Keeps your room dry and comfortable, reduces musty odors, prevents mold or fungus on walls, protects clothes, paper, and electronic items from moisture, and is very useful during the rainy season or in damp environments. Where is it mostly used? Homes, Offices, Warehouses, Clothing stores, Server/Electronic rooms.