The Moldex 2600 Series N95 Particulate Respirators feature the Moldex HandyStrap that allows the respirator hang down around the neck while not in use.2600 N95 Respirators Feature: Dura-Mesh shell, which resists collapsing in heat and humidity Naturally contoured facepiece Foam nose bridge for added comfort Flame resistant N95 respirators are NIOSH certified to have filter efficiency level of 95% or greater against particulate aerosols free from oil. An ideal respirator for hot, humid and dusty environments. Made in the USA15 respirators / box