High density polyethylene plastic body, UV rays stabilized and resistant against atmospheric agents corrosion action. Statically and dynamically balanced impeller with aluminium blades and galvanized steel hub. Enclosed type motor, cooled directly by the airflow, fixed upon a safety protection grille provided of anti-vibration supports. For continuous operation in environments with max temperature 40°C. ACCESSORIES:Speed regulator for monophase motors. Safety protection grille for the fan inlet side. Gravity shutter for wall or to be installed directly on the fan. High density polyethylene plastic body, UV rays stabilized and resistant against atmospheric agents corrosion action. PVC blades.