Should the exhaust fan in the kitchen blow inwards or outwards to effectively deal with the fumes?

First, the exhaust fan of the integrated ceiling of the kitchen is not said to be forward or reversed, but to the outdoor exhaust, or to the indoor fresh wind, generally speaking, the integrated ceiling exhaust fan exhaust is to rely on the power of the wind exhaust fan to pump out the indoor air, and the indoor air to supplement the indoor air does not need to rely on the ventilation fan, only need to rely on the natural fresh air in the gap between the doors and windows to make up the room. >>>More

You have to understand the concept of cooler and exhaust fan. >>>More

If you have money and want to be beautiful, you can use a range hood. To be economical, or an exhaust fan.

Exhaust fan: As the name suggests, it is to exhaust the gas, which mainly refers to the indoor odor, moisture, oil smoke, smoke smell and other filthy gases at home, which are discharged from indoor to outdoor, if the exhaust fan stops working, the fan blades will not merge. >>>More

This phenomenon is purely a poor line contact. Or caused by aging lines. >>>More