Silicone, full facepiece is the redesigned Sperian Survivair Opti-Fit™, re-engineered to accept Honeywell North N-series cartridges and has options for both PAPR and CF-SAR configurations in the Honeywell respiratory line. Features silicone nose cup and face seal for all day comfort, polycarbonate lens for open view and peripheral vision and 5-point headstrap.