Sorry if this is a bit off topic. I want to learn more about what protective gear is recommended at a protest. The obvious threats I want to be less susceptible to are CS gas, rubber bullets to the face, and LRAD. So I want impact protection and no unfiltered airflow for my eyes (and ideally the rest of my face), filtration for my nose and mouth, and hopefully earplugs and earmuffs. Solutions I’ve thought of:

• half face respirator and some sort of goggles. Not bad but what goggles are both airtight and impact resistant?
• half face respirator and doubling up eye protection? May not be practical
• full face respirator. Chinesium is $30, 3M is around $110. Does that include impact protection? Not sure. They may get in the way of earmuffs, too
• Milsurp gas mask. Probably fits the bill, though may get in the way of earmuffs. Are they at all ergonomic compared to contractor/industrial stuff?

So yeah, lots of questions. Anyone know of any good resources discussing this?