The Save Ph3010165 EFP passive lens - shade #10 is treated with an anti-fog coating at the factory so it will not fog up. Model # 3010165 Features: Each lens is treated with an anti-fog coating at the factory Will not fog up Anti-scratch and UV coating ANSI Z87. 1, CE and ASTM approved Item Dimensions: 3" L x 3" W x 5" H.
