Positive pressure ventilation fan for effective control of heat, smoke and toxic gases. Powered by a 10hp water turbine, the 21W10 offers a safe solution in the presence of flammable gases or liquids. The anti-static characteristics are ATEX approved with certification EXII 2GD cIIC T6 (80c). Key features are a 21inch diameter fan made of 8 anti-static polymide blades, lightweight aluminium frame for easy manoeuvrability, strong thermoplastic shroud, tilt control, water misting nozzle, drain valve and a range of inlet/outlet connections to suit local standards.