Surgical masks (left) don’t actually protect you. They protect your respiratory system by filtering bad stuff out of the air as you breathe. Respirators are what people actually mean when referring to emergency gear. It’s a little confusing because a gas mask is actually a respirator and much more effective than most other masks, but the lingo has stuck since World War I. Surgical masks are designed to shield a patient from a doctor sneezing, for example. But those labels are often used incorrectly. In common lingo you’ll often hear “masks”, “respirator masks”, and “gas masks” used interchangeably. Facial hair gas masks / CBRN escape hoods.Alternatives and emergency escape hoods.
Commonly found but usually not worth it.