Regular cleaning of kitchen exhaust fans enhances ventilation efficiency. The fan's thousand-leaf turbine blades have small gaps, and once they are coated with grease, the exhaust performance significantly decreases. The smoke purifier should also be cleaned regularly. As an important part of exhaust, the smoke purifier is a place with a high concentration of grease. Cleaning the purifier not only benefits the smooth exhaust in the kitchen but also eliminates fire hazards.

Ductwork for exhaust smoke, particularly the lower horizontal sections of the main exhaust pipe, tend to accumulate greasy residue. Incidents of fires caused by oil污 in restaurant kitchen equipment are all too common, reminding users to remain vigilant. Over time, the exhaust fans, if not cleaned, can accumulate significant amounts of oil at the bottom, leading to high temperatures when the oil comes into contact with the fan blades. This can easily trigger a fire. Similarly, if油烟purification units are not regularly cleaned, their internal purification plates and filters can become clogged, causing poor exhaust flow in the kitchen. Long-term neglect of cleaning the smoke exhaust ducts can result in a buildup of residual oil污.