laser has fallen off once, still works, was a good test of durablity i guess, but i dont put it there at party's, put it next to the big moonflower light on top of the tall set of speakers, they are pretty stable what did i tell ya mate, not bad for a $60 smoke machine ay haha, dunno about burning the throat though, i have never had any problems with throat or eye's or nose or anything.... worst thing ive had is a bit of claustrophobia with the tickness of the air...