Activated carbon pre filter replacement for Germ guardian filter E FLT4100 model AC4100 Directly attached to the velcro tape on the HEPA filter for replacement Pre filter carbon helps reduce household odors and capture big particle such as hair, dust, pollen etc Protects the HEPA filter and extends its life span A set of 4 activated carbon pre filter
Item# : SPM10025151802
Model # : HBCH-03