High Performance® Faceshield Window, Uncoated, Green, Wide View, 19 in L x 9 3 4 in H no checkout Their rugged motors are explosion proof Their rugged motors are explosion proof and rain proof to ensure a long life of dependability Heavy duty cast iron construction Carbon vanes and ceramic carbon seals reduce wear and repair expense Integral check valve with pressure relief on outlet side reduces pressure drop and improves vertical lift Self priming and comfort Offers an inherent barrier against particles down to 1 Injection molded from propionate Heat and scratch resistant Fits easily and comfortably over required protective spectacles or respirators