Filter medium, composite material, and mask system using filter medium

The present disclosure describes filter media, as well as mask filters and mask systems including those filter media. In one aspect, a filter media includes a fibrous media that includes a multi-component binder fiber, a glass fiber, and a microfibrillated cellulose fiber. In some aspects, the fibrous media further includes PET fibers. In another aspect, the filter media includes an electrostatically charged filter media, a fine fiber layer, and a scrim. In yet another aspect, the filter media includes two layers of fine fibers and two scrims. In further aspects, the filter media includes bicomponent fibers, polyethylene terephthalate fibers, and microfibrillated cellulose fibers. In another aspect, a filter media includes a support layer, a continuous fine fiber layer, and an efficiency layer. Combinations of filter media and composites are also envisaged. 本披露描述了过滤介质以及包括那些过滤介质的面罩过滤器和面罩系统。一方面，过滤介质包括纤维介质，该纤维介质包括多组分粘合纤维、玻璃纤维和微纤化纤维素纤维。在一些方面，纤维介质进一步包括PET纤维。在另一方面，过滤介质包括带静电电荷的过滤介质、细纤维层和稀松布。在又一方面，过滤介质包括两个细纤维层和两个稀松布。