How do I protect my eyes from liquids or dust particles ?

It is necessary to check the marking on the lens.  If the markings include D3 it means the frame is certified to protect against liquid splash. If it includes D4 or D5 it means the frame protects against dust (D4) or fine dust (D5).  These are all part of the required ANSI-Z87.1 – 2015 standards.

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