Wavelength: 190nm-420nm & 600nm-1100nm . Optical density: Optical density: OD 8+. (200-405nm OD5+; 650nm-660nm OD2+; 980nm OD5+; 1060-1070nm OD8+ ). Visible light transmittance: 30% Safety glasses for violet, red and infrared laser exposure. EN207: 1998 + A1: 2002 approved (European laser eyewear standards for laser safety eyewear). Delicate and cool appearance. Comfortable to wear. Absorption type full protection for your eyes.
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