The short answer, SEARCH. Sorry to be so direct but that question has been asked before and Google knows everything.
will a welding helmet with one of them auto on off feature work for a dvd laser
@OP It has been answered on the forum before, where most people is informed about lasers, but the answer is no, it won't protect you. Sorry for being mean, I understand how you feel it is just that that type of questions is asked here every day which gets annoying after some time.