FELLOWES AM-3/4 Active Carbon Pre-Filters 4's

Part of the standard replacement filter configuration for all variants of AeraMax® Pro AM3 and AM4 Air Purifiers
Commercial grade activated carbon filter which adsorbs a wide range of volatile organic compounds (VOCs) and odors
Includes separate pre-filter to capture larger particulate to help extend life of subsequent filters
6-month estimated filter life (depending on usage conditions)