DECOMPOSABLE AIR FILTER AND METHOD FOR MANUFACTURING SAME

摘要

A novel air filter comprises a frame having at least a perimeter portion and a generally open central area. An air filtering member of decomposable organic fibrous material is securely retained by the frame across the generally open central area, to thereby permit filtering of air passing through the generally open central area. The frame member may also be constructed from a decomposable organic fibrous material or from a decomposable plastics material.