Widely Used: The 4 inch fumer extractor fan / inline fan is widely used in homes, offices, warehouses, restaurants, bars, shops, shopping malls, grow tents, greenhouses and other places where a lot of air is needed.
Low Consumption & High Airflow: The 4inch fan designed with DC 12V motor, which is more silent than the AC motor and with lower power consumption; The air flow is up to 120m³/h (70CFM).
Back Damper / Check Valve: The 4inch inline fan designed with back dapmer, protects the fan from backward when you turn off the fan (Please remove the dampe if you need a ceiling mount). Ultra-lightweight, newly upgrade check valve.
Filter Mesh: The front absorption mouth with a piece of round filter, made from the initial filtration conforms to filter paper (louver-shaped) + sponge sealing strips. Effectively help absorb dust and odors. The filter is removable if you don't need or take it off to clean.
Wide Application: Usually used in duct system in bathroom, toilet, garage, dining room, attics, office, etc. Ideal replacement for the broken and old one. The kit included 1 x 4inch Extractor Fan (Pre-installed filter, check valve), 1 x AC/DC Controller, 1 x Duct Hose (6.5ft in length), 1 x English user manual.