【Compatibility】: This H13 True HEPA Replacement Filter ONLY Compatible with Pure Enrichment PureZone Air Purifier, Part No. PEAIRPLG. Please confirm the model of your machine. 【3-Stage Filtration System】：Pre-filter+Activated carbon filter+ True HEPA filter, 3 stage air purification. Pre-filter has excellent attaching effect on larger particles in the air like dust, hairs, pet fur, lint, HEPA filter to keep clean from dust, pollen.smoke particles, pet dande, the high-grade activated carbon filters can efficiently clean up 99.7% of particles and fumes, such as smoke, cooking smells. 【Cost-Effective Package 】 2 Pack HEPA Replacement Filter. Our product works functionally as original, but the half-price, affordable replacement filter, save your money. 【Easy to Replace and Install】 Easy to replace and install without tool required, for optimum performance, to replace the filter every 6 months. 【We Treasure Our Customer】--We Value our customer shopping experience, and are committed to doing our best to help every buyer to get high-quality functional products. breath freely, and enjoy a healthy life. 2-pack 3-in-1 H13 True HEPA H13 Replacement Filter, Compatible with Pure Enrichment PureZone Air Purifier, Replaces Part NO. PEAIRPLG