Please kindly noted that this item is sold by Shuangxiang Technology from Joybuy marketplace.

Product details Alen's B4-Fresh filter is best for removing smoke from cooking, cigarette smoke, wildfire, fireplaces, PLUS airborne allergens, dust, orders, pet smells, fur, household odors while eliminating bacteria and mold spores. Get all the wellness-boosting benefits of Alen's standard medical-grade H13 True HEPA antimicrobial filter plus the power of activated carbon (0.66 lbs) for added protection against toxins like volatile organic compounds (VOCs), pollution, and smoke. Remove 99.99% of harmful particles as small as 0.1 microns and keep your home?s air smelling incredibly fresh.The B4-Fresh filter does it all! Filter replacement includes a vacuumable/replaceable pre-filter to extend the life of your HEPA-Pure filter. Please Note: We do NOT recommend using other filters in your Flex or 45i, other brands may cause damage to the unit and it will not run efficiently. Includes: 1 H13 True HEPA B4-Fresh Filter Key Features (+)