Comfort head cradle positions the respirator more comfortably on the head, reducing pressure points and hair pulling. Soft, silicone nose cup and face seal. 3M Cool Flow Valve for easier breathing and cool, dry comfort. Large lens for excellent peripheral vision. Low profile bayonet cartridge attachments, designed for improved balance and better weight distribution Durability & Security. Long-lasting head harness straps pulled over one million times in durability testing. Six-strap configuration for a secure fit. Silicone nose cup and face seal engineered for maximum durability and resilience. Easy to Use/Easy to Clean. Paint and stain-resistant lens. 3M’s exclusive Scotchgard coating causes some paints and stains to bead up on the surface so they can be wiped off easily and helps lens stay clearer during spray applications. Scotchgard Semi-permanent Lens Cover lasts longer than standard tear-aways while also providing the benefits of the Scotchgard coating. Respirator attachments twist on and off easily for quick assembly and disassembly. Bonded silicone gaskets eliminates loose gaskets that can be lost.