1.Effective Purification System: HEPA+Activated Carbon+Negative ionizer+UV light 2.Two Speed Airflow ... 3.Dual Use Components:Specification:Functions:1. HEPA FilterTraps particles as small as 0.3microns.(allergens, pollen, dust ... germs, viruses, fungi and bacteria.4. UV Light and Photocatalyst Filter Beaks down poisonous fumes and VOC’s,i.e. formaldehyde ...