These half-mask respirators are made by Honeywell North. - Half-mask respirators are NIOSH-rated to provide respiratory protection from exposure to vapors, gases, and particulates, including those produced during spray painting, cleaning, and chemical processing. - They use cartridges and filters that can be customized to filter specific hazards and can be changed when they become dirty. Facepiece Material / Elastomer Head Harness Material / Thermoplastic Elastomer Mask Size / L Series / 5500 Compatible with Brand and Series / Honeywell North N-Series Respirator Connection Type / Threaded Configured For / Cartridges, Filters, PAPR, Supplied Air System Mask Headstrap Type / Standard Face Seal Material / Elastomeric Disposable/ Reusable / Reusable Color / Black Standards / NIOSH