Peracetic acid solutions have a pungent odor and should be used in a well ventilated area. Concentrated solutions are strong oxidizers and can be corrosive to the skin. Most sanitizers are unstable, highly reactive compounds and must be handled safely. Sanitation crews should wear protective equipment and clothing including a hard hat, face shield or goggles, an apron or protective coat and pants, rubber boots, and gloves. Sodium hydroxide reacts with aluminum to form hydrogen gas.
Chlorine gas is a deadly poison.
Gas cylinders must be handled carefully, stored securely, and kept away from heat. Liquid chlorine solutions are highly corrosive. Mixing a chlorine sanitizer with acid generates chlorine gas. Solid chlorine compounds are strong oxidizers and must be stored away from organic materials. Adding water to a concentrated sanitizer may rapidly generate heat.