The G30 is a unique design in flip front welding and grinding helmets. The visor provides effective protection from UV and IR radiation when the visor is both open and closed, and is available in different shade levels. The helmet is equipped with a strong and comfortable head gear. Inner visor lens comes included with shade 2 lens. Changeable inner visor lenses offered in clear and shades 2, 3, and 5 (sold separately). The outer flip visor comes with in shade 10. This Outer flip visor lens is changeable and is offered in shades 5, 8, and 10 (sold separately). Viewing Area is 6.1 x 6.7 in. (155 x 170 mm) large visor. Standards CE, ANSI, CSA, ASNZS.