zengds-07 Ventilation Fan Exhaust Fan 60x60cm Ceiling Mounted Ceiling Mute Powerful Exhaust Fan Commercial Office Ventilation Fan Anti Backflow Vent Fan

Adopting high-quality thickened panel, simple return air intake design increases air intake, faster and more comprehensive air exchange. Large-size full copper wire motor with double ball bearing motor, low temperature rise, low noise, low energy consumption, high air volume, high energy efficiency. Bi-directional flat wind wheel, isometric blades, improve wind speed efficiency. Equipped with anti-reverse flow windshield to prevent outdoor wind from pouring into the room under the shutdown condition. Fully enclosed chassis, moisture-proof and leakage-proof, flame retardant and non-deformation. Ventilation fan is great for conference rooms, public restrooms, and other areas in commercial buildings that require ongoing ventilation