3M™ Speedglas™ Helmet 9000 with patented exhaust vents to help reduce stuffiness.  3M™ Speedglas™ FlexView System features a spring-mounted filter assembly that can be lifted to expose a clear 4.75 in x 3.6 in (120 mm x 90 mm) faceshield for precision weld prep and grinding.  3M™Speedglas™9002V auto-darkening filter offers user-selectable dark shades 9 through 13 with shade 3 light state.  Four-position sensitivity control.  Adjustable recovery delay.  Shade 5 SideWindows increase peripheral view.