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If you do any teaching of others to shoot, or ever bring inexperienced shooters to a range, then electronic hearing protection for you and them is a safety necessity, IMHO. It is almost impossible to provide meaningful instruction on a loud crowded range without it. I bought a couple of pairs of (I think Cabelas-branded) relatively inexpensive electronic earmuffs. I still double up with military issue rubber earplugs, and crank the volume on the earmuffs up all the way to hear conversations. They cut out a little sometimes, but because I was buying two pairs, I somewhat cheaped out. I think they cost me $25-$30 a pair at a Black Friday sale, but don’t really recall exactly.

I did just come across these, however, and they look interesting, but I want to do a little more research before I buy them.

https://www.decibullz.com/custom-molded-percussive-shooting-filters/

And I like these, but they’re not really enough protection for larger calibers. But they do enable you to hear (although not perfectly) while they’re in, without relying on batteries, so a pair of these resides in my “go bag” and another in my bedroom pistol safe. They’re inexpensive (<$20) so they make good emergency hearing pro, or spares if you’re just shooting a .22 or something similar.

https://otistec.com/earshield-hearing-protection/

For general and when working a line as safety office, I wear Walker Ultimate so I can adjust to hear conversation. For indoor when I or others are shooing larger calibers, and when around 50 cal outdoors, I also double up with foam inserts, Moldex Meteors (33db) Always carry near spares. Best over ear are these ClearArmor (34db): https://www.amazon.com/gp/product/B00NKSMPZW/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

Before going prescription lenses, ANYTHING by Oakley to protect the peepers! Most if not all brand name lenses are ANSI and osha etc certified. It just comes down to fit, comfort, coverage and preference. Currently using the Peltor Sport Tactical 500 hearing pro. Battery life is ~ok~ but noise reduction is great, comfort and size also, and the bluetooth connection to the phone is very clever. Price is in the buck-twenty range and well worth it. Looking to upgrade to MSA super-pro-x-whatever when time to replace rolls around.

.02
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KYPD

Off-Topic information concerning noise suppression with Helium gas. An experiment was conducted comparing sound propagation through helium versus air found a 20 decibel reduction in transmission. A thin layer of the gas was sufficient for this effect. Credited to a great difference of mass of the particles, resulting in an acoustic impedance miss-match.