Fan filter unit is defined as type of motorized air filtering equipment. It is used to supply purified air to the laboratories, cleanrooms, hospitals and microenvironment by removing hazardous airborne particles from recirculating air. Based on type, fan filter unit can be categorized as high efficiency filter, ultra efficiency filter and coarse effect filter.

Fan filter unit is defined as type of motorized air filtering equipment. It is used to supply purified air to the laboratories, cleanrooms, hospitals and microenvironment by removing hazardous airborne particles from recirculating air. Based on type, fan filter unit can be categorized as high efficiency filter, ultra efficiency filter and coarse effect filter.