Filter media including a waved filtration layer

Abstract

Filter media including a waved filtration layer are described herein. The filtration layer may be held in a waved configuration by a support layer. In some cases, the filtration layer may have a combination of characteristics (e.g., mean flow pore size, basis weight, amongst others) that can lead to enhanced filtration performance (e.g., reduced air permeability decrease), in particular, in high humidity environments. The filter media may be used to form a variety of filter elements for use in various applications. In some embodiments, at least a surface of the filtration layer is hydrophilic.

What is claimed is: 
     
         1 . A filter media, comprising:
 a fiber filtration layer and a support layer that holds the fiber filtration layer in a waved configuration and maintains separation of peaks and troughs of adjacent waves of the fiber filtration layer,   and   wherein at least a surface of the fiber filtration layer is hydrophilic, having a water contact angle of less than or equal to 60 degrees.