PPE, or, personal protective equipment, is sort of a catch-all phrase for the suits, booties, gloves, hoods and in many cases respirators worn by individuals who are entering a hot zone. These suits are incredibly difficult to move in. You are wearing several layers of gloves, which limits your dexterity to basically nil, the hoods limit the scope of your vision -- especially your peripheral vision, which all but disappears. The suits are hot -- almost unbearably so. The respirator gives you clean air, but not cool air. These suits are for protection, not comfort. Before you even suit up, your vitals need to be taken. You can't perform in the suit for more than about a half hour at a time -- if you make it that long. Heat stroke is almost a given at that point. You have to be fully hydrated and calm before you even step into the suit. By the time you come out of it, and your vitals are taken again, you're likely to be feeling the impact -- you may not have taken more than a few steps in the suit, but you'll feel like you've run a marathon on a 90-degree day.