ORIGINAL PRIUS Eyeglasses! Filter UV 400 Protection Filter UV 400 blocks ultraviolet rays: UVA, UVB and UVC. It guarantees 100% protection against these rays. The product complies with the European Standard EN ISO 12312-1:2013+A1:2015 recognized as the Polish Standard PN-EN ISO 12312-1:2014-02E. Lens category and transmittance: the glasses have category 3 - general-purpose glasses with high protection from the sun - 8% - 18%. The glasses are CE approved, the high quality of the materials used ensures durability and comfort of use..