Filter medium, filter pack, and filter unit

Abstract

There is provided a filter medium whose pressure loss can be suppressed, a filter pack, and a filter unit. A filter medium includes a porous membrane, a support layer, and a fibrous adhesive for bonding the porous membrane and the support layer. A relationship of “average fiber diameter of porous membrane”: “average fiber diameter of adhesive”: “average fiber diameter of support layer”= 1/2000 to 1/30:1 to 6:1 is satisfied. When viewed in a thickness direction of the filter medium, a plurality of fibers of the adhesive do not overlap with each other, or a number of intersecting points of the fibers per one fiber is 3 or less.

Dependencies are inferred from the claim text.