![kdk-revesible-series](https://www.kdk-mea.com/wp-content/uploads/2019/01/kdk-revesible-series.jpg)
Wall Mount Ventilation Fans
These fans shall be installed to exhaust air through a wall. They are equipped with outside shutters which will open when the fan is on and vice versa. There is a wide range of products, either blade size or functions, that can fit various requirements.
![bearing](https://www.kdk-mea.com/wp-content/uploads/2020/05/bearing.png)
HP (Half-Pitch) Motor & Bearing
Compared with previous models, new models adopt HP (Half-Pitch) motor and long life bearing that prolong the product durability, from average 30,000 hours life time to 60,000 hours.
20ASB/25ASB/30ASB
• Condenser motor with thermo cut-off
• Lubricated sintered bush
• High performance propeller fan adopted
• Automatic shutter
• Powder painted metallic orifice, blade and oil cup
• Detachable oil cup
Operation Manual
![metalic-series-v2](https://www.kdk-mea.com/wp-content/uploads/2019/01/metalic-series-v2.png)