The R95 Series Particulate Respirators from Moldex are ideal for use in hot, humid and dusty environments. Features include Moldex’s HandyStrap® with buckle, Ventex® valve, Dura-Mesh® shell and Softspun® lining for increased comfort and durability. Respirators are NIOSH-certified to have a filter efficiency of 95% or greater against oil and non-oil based particulates.Moldex-Metric, Inc., Culver City, CA.