Thread:Metal Mario875/@comment-30300307-20170813024434/@comment-26374068-20170813165659

I believe the question looks answered fairly well, but I will say one thing:

Red security lasers can vary. Many are there simply to catch a disruption in the room and alert the owner of this disruption (which is normally an intruder). If its heat could saw through someone, it'd probably be 9-B via heat alone. And being so concentrated would make it even more dangerous.

Sound in cement factories and such are only 10-C, since they don't actually hurt us, but rather damage our hearing.