I own noise-dumping earplugs, that are fitted to my ears, so they dont feel uncomfortable and can be carried for hours.
The good thing about them, is that they only reduce sound volume about 45 dB. Because of me having very senstivive and good hearing, that still let me hear if people talk to me directly and similar. But it simply makes loud noises more moderate, and it shuts off lots of more silent humming noises, that are produced by machines, lamps, displays, ...
They are regularly called here musicians/studio earplugs, so they are specialised on not dumping the sound itself, but only to reduce the volume of sounds.
I wear them regularly in work, swimming places, for sleep on weekend... Because of me still being able to understand people talking directly at me, almost nobody mentions, when I wear them. So they dont really cause much problem with other people.