It is for air pressurization in the indoor.
With three -in-one high-efficiency filter screen, the blower can filter PM 2.5 and purify air, so as to make household environment comfortable and healthy.
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; anti-corrosive and fireproof; cabinet structure, totally enclosed & with water-proof terminal box inside; excellent security. Impeller, high quality galvanized plate; firm in structure & stable in operation.
High efficient motor: high quality ball bearing, with reset-able temperature protector; longer service life, 3 times longer than of oil-retaining bearing motor.