A filtration barrier comprises at least one barrier layer which includes polymeric nanofibers interlaced with microfibers, and at least one substrate layer which includes polymeric microfibers. The filtration barrier can be made by electrospinning process.

The present invention relates to a filter media for filtering condensate which includes oily contaminant. The present invention also relates to a filter comprising the filter media. The present invention also relates to a filtration machine comprising the filter media.

Polymer composite materials are disclosed containing one or more chemical scavengers. The polymer composites are porous and are configured to be contacted with a liquid for removing trace amounts of metals, proteins, polypeptides, polyphenols, other organic compounds, and the like. In order to produce the porous composite polymer product, one or more chemical scavengers are combined with high density polyethylene particles and sintered into a shape. The polyethylene resin acts as a binder trapping or encasing the one or more chemical scavengers in the porous structure.