SAILFLO 10 Inch Exhaust Shutter Fan 2-Way Linkage Blower 470 CFM Strong Reversible Airflow Wall Mounted Ventilation Fan for Vents Attic Kitchen Bathroom Basement 10" Diameter Propeller
Brand: SAILFLO
Color: φ10 inch / 25cm

This fan can breathe reversely by simply using the pull string. first time the fan turns on, second time, it reversely runs, third time the fan turns off and the shutter will be closed.
It will keep your home well ventilated while reducing humidity. make you breathe fresh air and leave a comfortable environment for you.
Product Details:
Model:LFW-25DK
Panel size: 350 × 350mm
Opening size: 290*290mm
Exhaust air volume: 800m³/h(470CFM)
Air intake: 680 m³/h
Noise: 40dB
Power: 35W
Speed: 900r/min

Installation Precautions:
1. Installation location>> You can purchase 1 or more to meet your needs install it in the wall, glass or windows, DIY your own air circulation system.
2. Space requirements>> Do not vent in one direction in a closed environment. The installation environment requires intake and exhaust to ensure air circulation and avoid air pressure difference due to too much air flow.
3. About wiring>>Each exhaust fan has a 40cm standard wire, which is convenient for you to connect to the circuit. The installation position and layout are different for each customer, so there is no design plug, you can configure the plug or power switch according to your needs.
4. About noise>>30-40 dB, If you install it in the bedroom, please place it stay away from your bed.
5. About wind speed>> If the air volume is too large, you can equip it with a speed controller. Or you can add more fans if the air volume is not enough.
6. About after-sales service>> Please feel free to contact us if you have any confusion or problems.

★Large Airflow -- Exhaust 800m³/h(470 CFM), air intake 680m³/h, fast speed and the thick vanes make it more stable.
★Can Exhaust In Reverse -- It is a 2-way linkage type ventilation fan.In addition to exhausting smoke, it can eliminate sweltering hot air masses, and inhale cool nature wind to achieve ventilation.
★Durable Motor -- High-quality wear-resistant sleeve bearing motor, which can continually work for 9,000 hours, quiet and stable.
★Overheat Protection Easy Operation - with overheat protector, efficient temperature fuse, safer to useThe first pull, the fan runs and exhausts outward. The second pull, the fan reversely runs, and the air is inward. The third pull, the ventilation fan stops running and the louver will close.
★Easy To Install -- Applied to vents, kitchen, bathroom, shopping mall, bedroom, living room, 33" UL certified power cord with plug and the detachable panel make it easy to install and clean.