European Standards (EN1836) and USA Standard (ANSIZ80.3) for sunglasses filter range explained
Manufacturers, when complying to European Directives, produce sunglasses with lenses that fit into one of 5 categories. These categories are specifically tailored to the amount of glare that can pass through the lens to the eye. It is important to note that even cosmetic sunglasses with almost no glare protection will offer the highest level of UVA, UVB and UVC protection (often regarded as Ageing, Burning and Cancer UV in the industry) when conforming to European Standards.
Filters Explained:
No.0 Highest level of UVA, UVB & UVC protection. Cosmetic use, these sunglasses offer very limited protection against the suns glare with 80-100% of light passing through the lens.
No.1 Highest level of UVA, UVB & UVC protection. Cosmetic use, these sunglasses offer limited protection against the suns glare with 43-80% of light passing through the lens.
No.2 Highest level of UVA, UVB & UVC protection. General purpose, these sunglasses offer medium to high protection against the suns glare with 18-43% of light passing through the lens.
No.3 Highest level of UVA, UVB & UVC protection. General purpose, these sunglasses offer high protection against the suns glare with 8-18% of light passing through the lens.
No.4 Highest level of UVA, UVB & UVC protection. Special purpose, these sunglasses offer very high protection against the suns glare with 3-8% of light passing through the lens.
100% UV protection sunglasses range at www.starsunglasses.co.uk
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