This product description is for Moldex-Metric Moldex AirWave Particulate Respirator Masks in a small size, designed for industrial use. These white, non-sterile masks feature an adjustable head strap for a secure fit and Dura-Mesh construction for durability. With an N100 rating and a PFE of 99.97%, they offer effective protection against particulates. The cup design ensures a comfortable wear, and the valve helps reduce moisture and heat buildup. This package contains 5 masks.