Elwalker low altitude emission H series for the following restaurants: Restaurants with tense relations with surrounding residents due to the unsatisfactory purification effect of kitchen oil fume There is no special smoke exhaust shaft in the office building, which needs to be discharged directly in the louver The restaurants supporting modern protective buildings have strict requirements on the efficiency of oil fume purification Hotels and restaurants at the beginning of the pedestrian street shall not affect passengers and pedestrians A high-end restaurant with strict requirements for oil fume purification and oil fume odor Japanese cuisine, Korean cuisine, barbecue shops and other restaurants with large amount of oil smoke Hunan cuisine, Sichuan cuisine and other restaurants with large amount of oil smoke and difficult to remove the taste Due to the sensitive location of the restaurant, it is difficult to deal with oil fume and peculiar smell