YMHML 14" High Speed Shutter Exhaust Fan Aluminum,Wall Mount Ventilation and Cooling for Sheds,Attics,Workshops

Simple Installation: This exhaust fan with automatic shutters can be easily added to window openings or wall openings and thermostats to optimize cooling.

Cooling And Ventilation: This industrial-grade louver fan can solve all your cooling and ventilation needs.

Rust Resistant Aluminum Shutters: This shutter fan is made with corrosion resistant aluminum shutters and blades. This prolongs the life of the fan and prevents rust. 100% fully enclosed in natural state, effectively blocking mosquitoes

Very Applicable: This 14" shutter/exhaust fan with automatic shutter can help replace air conditioning units by cooling garages, attics, greenhouse shops or chicken coops.

Long Service life: The weather-resistant and corrosion-resistant aluminum shutters have good anti-friction effect, long service life, low noise, strong wind, and are also very energy efficient.