Effeciently Removes 99.97% of dust:This replacement air filter is H13 true hepa filter and activated carbon filter to HEPA standards and regulations, going to capture any airborne particles that is larger than 0.3 microns in size, effeciently removes 99.97% of dust, pollen, smoke, odor, mold spores, and pet dander. Keep your air purifier at its best working condition and capacity3-IN-1 Filtration: A 3-layer filtration system that includes a fine pre-filter, activated carbon filter, and HEPA filter ensures your air is not only particle free. It also removes smells and odors making it great for homes with smokersPerfect for those who are sensitive to the surrounding air quality. It will not release hazardous substances or ozone Filters are sealed to protect their lifetime. It is recommended to replace air filters every 6 months. Remove filters from plastic packaging before placing them into air purifierUniversal Compatibility: lv-h132 Filter works with Levoit air filters. It is not sold or created by Levoit. It is compatible with LV-H132. Compare to Part # LV-132-RF. It is designed to fit snug without any leaks. Every purchase you make gets you 2 high efficiency replacement filters. They are disposable and easy to replace. No tools required.