This 16″/ 40cm intrinsically safe turbo blower is precision balanced, with a cast aluminum turbo impeller. UL and ATEX certified motors for safe use in adverse atmospheres. Non-sparking, heat resistant Lexan polycarbonate housing with 4-corner handles for fast set-up and storage. Built for smoke ejection in hazardous conditions and confined spaces. High velocity flow decreases desmoking time dramatically. Lightweight, compact design stacks easily. Door bar and hanger for suspending in doorways and windows. Horsepower rating based upon maximum speed/load.