Protective clothing is worn over personal clothing to protect workers from environmental hazards. Aluminized clothing reflects heat when working near fire or in forges. Arc flash and flame-resistant clothing protects workers from flames or electrical hazards. Chemical, liquid, and particulate protective clothing includes encapsulated suits, coveralls, and sleeves to keep workers clean and protected from hazardous and nonhazardous chemicals, powders, and aerosols. Cleanroom clothing is low-shedding to keep areas free of contaminants. Cryogenic clothing protects against burns caused by extremely cold liquids. Cut-resistant clothing protects against lacerations when working with knives and sharp edges. Hairnets, bouffants, and beard nets prevent hair from falling into food and other substances. High-visibility clothing are made of bright colors and reflective materials. Welding clothing protects against burns caused by heat and sparks. Dispensers keep clothing readily accessible.