it can effectively eliminate the odor, smoke, and pollutants such as harmful gases produced by oil smoke. in addition, the purification effect is very significant. chengde environmental protection oil fume purification device adopts traditional multiple filtration system to pass the filter. it can reach more than 99%, avoiding the harm caused by the catering industry to the environment. at the same time, chengde environmentally friendly oil fume purifier also has the advantages of unique low noise and no dining space, providing daily consumers with a comfortable dining environment.