4-in-1 Air Purifier for Home: The s new generation ionizer air purifier makes a great combination of important functions including Air Ionizer, H13 True HEPA Filter, UV Light and Essential Oil Diffuser. We try our best to provide the best air quality to improve your life. Air Ionizer & UV Light: It generates negative ion into the air which can attach to floating allergens like pollen, dust, dander and weight them down. Its also been proven to effectively reduce odors in rooms. Built-in UV light further purify air that has already passed through the HEPA filter. H13 True HEPA Filter: The MJ002H air purifier is initially equipped with a 3-layer H13 HEPA filter. It can effectively filter 99.97% of airborne particles as small as 0.3 microns, such as Pollen, Dust, Allergies, Pet Dander and Smoke. Activated carbon effectively absorbs smoke, VOCs and smell from the air. 8/12/24 Hrs Timer &