The exhaust fan used in the kitchen is small and the wind cannot open the outer sealing strip

How to deal with the kitchen exhaust fan window blades that cannot be opened: >>>More

Adding a governor is a way, but it seems to take up a bit of space, fixed on the wall and not very convenient, there is also a way to connect a capacitor in series on the power supply inside the electric fan, the capacity is selected between 1 micro-method, the capacity is small and the wind is small, the capacity is large and the wind is large, and a switch can be connected in parallel on the capacitor, and the switch is closed when not needed, just like the original. If you have hands-on ability, you can try it. Stay safe.

It is best to contact the manufacturer of the exhaust fan and reflect the actual situation to him to see what the problem is. You directly said that the blades can't be opened, and we don't know what the situation is, so you should be more detailed.

Many small restaurants and some old houses use exhaust fans. The effect can only be said to be average, after all, the location will not be on the top of the stove like the range hood, the principle of the range hood is the same as the exhaust fan, and the oil can be removed after a period of time. >>>More

Fans used in restaurants are generally used in ceiling fans. Big brands can be used for a long time. >>>More