C50 gas mask lens rating?

i have an Avon C50 gas mask, and ive been struggling to find answers for the lens rating, whether is ANSI rated or US ballistic rating. I know the outserts are rated to the DoWs standards for eye pro, but i wonder about the lens in the actual mask itself. does anyone know if its impact rated or are my peepers fucked if some airsoft kiddo beams me in the face with this thing on