Mower I don't but Grinder hell yes! Higher Frequencies have far more energy and cause more damage. I wear ear muffs to drill a hole in the wall, run a circular saw, plunge saw.... Just about any power tool. Wish I'd started before I noticed the ringing but hey ho.
good for you! smart behavior. better late than never...
I wear plugs and muffs if I run my saws. even plugs to walk dog, his bark is BIG! I even wear ear plugs when raking pine needles on the cement driveway... quieter, you know.
spotted a potential scrounge other day on side of residential driveway. couple good wheelbarrow fills. long limbs. could be oak. think I will go back tomorrow with saw in back... and see if they want it removed.
Happy Holidays to all. great pix, btw!