Air purifier range hood is a kitchen appliance that combines air purifier and range hood, which has two functions of air purification and range hood. The range hood for purifying air mainly includes two functions: smoke exhaust and air purification. Its oil smoke absorption function is the same as that of the traditional range hood, which is mainly reflected in that the oil smoke absorption function is turned on when cooking, so that the waste burned by the cooker and the oil smoke harmful to human body can be quickly pumped away and discharged outdoors, thus reducing kitchen pollution; The function of air purification is mainly embodied in turning on the air purification function after cooking, and filtering out various harmful substances such as oil fume still remaining in the kitchen through the air purification system, thus realizing the air purification in the kitchen and effectively reducing the pollution in the kitchen. Although they are all designed to remove the oil fume, one is to directly remove the oil fume from the kitchen, but it has no effect on the purification and discharge of the oil fume, while the catering oil fume purifier purifies the oil fume and then discharges it. At present, there are environmental protection tests for lampblack, and it is easy to pass the lampblack test by using lampblack purifier. The use of range hoods does not help the environmental detection of lampblack, but only excludes lampblack from the kitchen. Nowadays, many people think that the fume purifier and the range hood are the same, or the efficacy is the same. In fact, the fume purifier and the range hood are completely different devices. The range hood is used to exhaust oil fume, and the oil fume purifier is used to purify oil fume. One is to remove the kitchen fumes, and the other is to remove the kitchen fumes after purification. Moreover, the range hood is used in the kitchen at home, and the cooking fume purifier is used in hotels, restaurants, canteens and corporate canteens.