The 100% medical-grade silicone facepiece is flexible, to provide a soft, secure and comfortable fit. Wide sealing area for improved fit and ability to fit more facial types. Nose cup provides less dead air space and channels exhaled breath. Speech diaphragm is standard to provide speech clarity. Lens offers 200å¡ field of vision and downward view for optimal viewing area in all directions. Polycarbonate lens meets ANSI requirements for high impact. Can be adapted to PAPR or Supplied Air. Optional welding kit available. NIOSH Approved. Compatible with Honeywell North N-Series cartridges and filters (sold separately).