Chemical resistant article

Publication Date

July 14, 1999

Patent Number

US4218779A

Abstract

A disposable mask (11) that includes a filter media (14) capable of filtering particles of a size appropriate for its purposes, while providing excellent breathability. The mask (11) is formed from multiple layers of filtration material having the general configuration of a trapezoid. The mask (11) is secured by straps (16,18) to the head of a wearer. The straps are arranged to be approximately coextensive with a line extending from the edges which define the opening of the mask so that the edges are pulled into tight sealing engagement with the face of the wearer. <IMAGE>

Chemical resistant article