1, for the lampblack purifier itself, it mainly uses physical principles to remove lampblack, so as to achieve the effect of purifying lampblack. With the use of oil fume purifier, internal oil pollution will gradually deposit. If it is not cleaned and maintained regularly, the function of filtering oil fume will not be achieved, and there will be oil fume in the kitchen, which will lead to the decline of the kitchen environment, even burn out the oil fume purifier and even cause a fire.

2. When the oil pollution deposited in the oil fume purifier reaches a certain level, the oil fume purifier will lose its function, and the oil fume cannot be purified and directly discharged, resulting in environmental pollution. In this case, it is easy to cause complaints from the surrounding residents. According to the provisions of Article 91 of the Law on the Prevention and Control of the Atmosphere, in violation of the provisions of this law, catering service operators who discharge lampblack have not installed lampblack purification facilities, used lampblack purification facilities abnormally or adopted other lampblack purification facilities, and discharged lampblack beyond the discharge standard, the local people's governments at or above the county level shall decide to supervise them. Refuses to correct, shall be ordered to suspend business for rectification;

3. After the oil fume purifier loses its function, it is easy to cause the oil fume in the kitchen not to be discharged, which leads to oil pollution deposition in the kitchen, which is not conducive to kitchen cleaning; Cooking fume contains a variety of aldehydes, which have different degrees of irritating odor and toxicity and are extremely harmful to human body. Smoke smell is mainly caused by unsaturated aldehydes, and polycyclic aromatic hydrocarbons are carcinogens, so it will do great harm to kitchen staff. The harm of lampblack is far more than what we said, but the reason for these hazards is that the lampblack purifier is not cleaned regularly.