【COMPATIBILITY】isinlive 2 HEPA and Carbon Pre-filters is specially designed for VEVA ProHEPA 9000 Device. 【VALUABLE PACKS】This value pack includes 4 HEPA Filter and 8 Activated Carbon Pre-filters. Large packaging,more money saving. 【HIGH EFFICIENCY HEPA FILTER】Our HEPA replacement filter and activated carbon pre-filter work together to reduce airborne particles and unwanted odors in your living space for improved air quality. 【WARM MAINTENANCE TIP】Replace HEPA filter every 6-8 months and Activated Carbon Pre-filter every 3-6 months for optimal performance. 【BUY WITH CONFIDENCE】We are committed to offer the top quality products,if you have any quality problem with the filter, please contact isinlive after-sale team in time and we will try our best to satisfied you. isinlive ProHEPA 9000 Replacement Filters, Compatible with VEVA ProHEPA 9000 Air Pur ifiers, Including 4 Pack HEPA Filters + 8 Activated Carbon Pre-Filters