Just my 2 cents from a cheap SOB
headphones,ear plugs,foam plugs all work well but a box of cotton works great and it's clean,,,and cheap, most ears are not the same and the cotton works well all the time,,
I ran my own machine shop and we would cut up 1/4" to 6" dia.steel rod up for 8 hours at a time with a metal type chop saw and others in the shop would do it as well and we all used the headphones,ear plugs but in time they would just get plane dirty not to say anything about the ear wax on the plugs and inside of the headphones,so one day I switch over to cottom plugs and have been using it for a long time now..I still have a set of headphones and use them now and then...with the cotton
plus when your done with the job your ears are clean
LOL and you don't need to say WHAT DID YOU SAY,,,all the time....
==========