➤COST-EFFECTIVE ASSEMBLY FILTER KIT – 26 Pcs Foam Pollen Filters and 26 Pcs Ultra Fine Filters. ➤BENEFIT OF REUSABLE FILTER SLOTS – Reusable and easy to replace. ➤CLEAN AIR FOR HEALTHIER LIFE – Our kit is designed so as to provide you and your loved ones with the cleanest air.Our products are protected by patent USD938004S.