Large air volume & super quiet; Easy installation, Application: Ventilation for hotels, shopping malls, places of entertainment and buildings. Totally enclosed metal fan body: fan body, high quality galvanized plate; anticorrosive and fireproof; cabinet structure, totally enclosed & with water-proof terminal box inside; excellent security. Impeller, high quality galvanized plate; firm in sructure & stable in operation. High efficient motor: high quality ball bearing, with resetable temperature protector; longer service life, 3 times longer than of oil-retaining bearing motor.
