Applicable Models: This for levoit air purifier filter is compatible with LV-PUR131 and LV-PUR131S machines and can be used as the replacement set High Efficiency Filtration: The H13 true HEPA filter for levoit air purifier and activated carbon filter can remove 99.97% of dust, smoke, pet dander and so on, providing fresher air to breathe Activated Carbon Filter: The activated carbon for levoit filter replacement effectively adsorbs odours and other pollutants from pets, smoking and cooking, extending the life of the HEPA filter and providing fresh air Long-lasting Cleaning: The hepa filter of this filters for levoit air purifier can adsorb particles such as pm2.5 and reduce air impurities. The activated carbon adsorbs odours and particles to purify the air and provide long-term cleaning Packaging and Replacement: This for levoit filter includes 2 activated carbon filters and 2 hepa filters. Easy to replace and install without any tools, Weight: 3.858089585 Pounds, Manufacturer: KEEPOW