NIOSH-Approved N95 use-once respirator provides excellent protection from dust, mists and fumes in non-oil environments. Contoured shape and molded nose bridge ensure wearing comfort. Strong, rigid outer shell prevents the mask from collapsing in high-humidity environments. Dual-welded head strap. Respirator Type: Half-Face Mask; Rating: N95; Resistance: Solid and Liquid Particulates, Excluding Oils; Material(s): Electrostatic Non-Woven Polypropylene Polyester Fibers.