●Patented air inlet switching connector can be transformed into a high performance smoke & fog removal machine
●Flame resistant polypropylene housing with UL flame retardant rating of UL94-5VA
●Fan blade made of glass fiber polyester resin material with spark resistant feature
●Can be electric or gas driven
●Accommodates 8"" (203mm)flexible duct
●Can use with airflow duct canister for easy transporting & storage
●Noise level = 78dBA
●Explosion proof
●220V/1Phase/50HZ。