BOYON A16 HEPA Air Purifier Filter

3 Stages Filtration System: ?Pre-Filter: The pre-filter offers the first layer of protection, catching larger particles from the air. ?True HEPA Filter: Electrostatic filtration works with the particle filter to remove 99.97% of airborne particles. ?Carbon Filter: Activated carbon layer removes light odors. Activated carbon traps light household odors from pets, cooking, and smoking. More effectively aiding in the removal of 99. 97% of dust, pollen, smoke, odor, and pet dander.