chemical filter by pleatBy using chemically treated carbon granular or ion-exchange resin of high grade, impregnated fiber without any glue, currently applied to famous semi-conductor industry in Taiwan. basic propertyadsorbent content : 600g/sqmmedia type : adsorbent loaded fiber & enveloped by nenwoven of no glue functionAcid gases removal (H2S, SO2, HCl, HNO3, HF,H2SO4, ..)amine gases removal (NH3, Ammonia..)VOC gases removal ( HMDS, Toluene, IPA, Xylene..) applicationclean room air quality control (ppb filtration)HVAC other challenge feagurehigh efficiency even ultra low concentration ( 2~3 ppb)high air flow with low efficiencylow particle shieldingcombi filter demanding aceptable