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Description of Filter Categories and Assigned Symbols
Filter category 0
Description
Light tint sunglasses or fashion spectacles
Usage
Very limited reduction of sunglare Some UV protection
Filter category 1
Description
Light tint sunglasses or fashion spectacles
Usage
Limited protection against sunglare Some UV protection
Additional required information
Not suitable for driving in twilight or at night" or "not suitable for driving at night or under dull light conditions
Filter category 2
Description
General purpose sunglasses
Usage
Good protection against sunglare Good UV protection
Additional required information
Not suitable for driving in twilight or at night" or "not suitable for driving at night or under dull light conditions
Filter category 3
Description
General purpose sunglasses
Usage
High protection against sunglare Good UV protection
Additional required information
Not suitable for driving in twilight or at night" or "not suitable for driving at night or under dull light conditions
Filter category 4
Description
Very dark special purpose sunglasses— very high sunglare reduction
Usage
Very high protection against extreme sunglare. e.g. at sea. over snowfields. on high mountains, or in desert
Good UV protection
Additional required information
Not suitable for road use and driving