And don’t be afraid to wear earplugs. I used to commute via public transit with 25db earplugs in, to protect my hearing. It reduced my stress significantly to boot.
Not in particular. Earplugs are well regulated by the dB reduction they offer, the only other thing that matters is going to be fit, which is extremely personal. I’d recommend going with cheap disposable ones, since they tend to get pretty gross easily.
