Upgraded 25 Replacement Filter, Compatible with 25 S1/W1/B1 Air Purifier,4 in 1 Stage with Pre-filter,H13 True HEPA,and Activated Carbon,4-Pack

Features

• 【UPGRADED 25 REPLACEMENT FILTER】The upgraded version fits only the MA Series Air Purifier 25 S1/W1/B1 and features an additional silver ion layer compared to the standard version, directly reacting with tiny particles.
• 【4 IN 1 STAGE】The 4-layer captures 99.97% of air particles as small as 0.1 microns more effectively than the standard 3-layer.
• 【TRUE HEPA H13 FILTRATION】Original quality,H13 HEPA with even spacing,abundant pleats to reduce wind resistance,and rapid air circulation.
• 【PREMIUM ACTIVATED CARBON】We promise that our filters use high-quality,odorless activated carbon for enhanced odor absorption in the air.
• 【BUY WITH CONFIDENCE】We offer a lifetime of free service for every customer, aiming to provide the most satisfying purchasing experience.