SAILFLO 4 Inch Wall-Mounted Exhaust Fan, 12W Ventilation Extractor with Anti-backflow Check Valve Chain Switch for Window Duct Glass Grow Tent Bathroom Vents - 6"×6" Grid Panel - Small Size

When installed to glass or walls, it can be used to prevent dust, leaves, pollen, backflow with the wind-proof ABS sheet.

The lattice filter can be removed and easy to clean.

This 4 inch exhaust fan is equipped with a pull cord switch, making it easy to turn the fan on/off, even when mounted high.

Energy SavingThis 4 inch exhaust fan adopts environmentally friendly ABS material which is light and not easily deformed, excellent heat resistance and durability.

The consumption efficiency is only 18 watts, saving power.

DurabilityAdopting an axial pipe fan that realizes optimal cooling and a sealed pure copper bearing motor, it generates less heat, has a longer operating time and longer life.

Overheat ProtectionThe built-in overheat protection device cuts the contact when the motor overheats, and plays the role of power failure protection and double protection.

Easy InstallationSuitable for places where ventilation is required, such as kitchens, offices, stores, living rooms, bathrooms, and windows where air does not flow much or where the air is dirty.