1)With HEPA,Anion,Healthy wind 2)Fan,4speed,nanometer ... For the room dust ,we select HEPA (high efficiency particulate air filter) as the best HEPA material which internationally accepted, it ... best choice for many old men and children. XITIAN air purifier clean air , at the same time ,it can release ... automatic. at the same time remind choose mode. With RC for distant range handle set the function you ...