The conventional lab jacket has earned a reputation as a prestigious uniform worn by those who conduct research or work in a science-related field. It is stark white, wrinkle-free and has served as a universal symbol for a sterile environment. Each scientist or lab worker who wears one is expected to keep it clean and does not disrespect it with food stains or lab spills. One of the few workers who can get away with breaking this rule is a butcher. Even with an apron, his jacket still catches every stain in the shop.
Disposable lab coats are popular in pharmaceutical labs and work areas that are contaminated. Microporous jackets allow the skin beneath it to breathe, yet is it durable to withstand rigid lab conditions. They are usually selected for general purpose functions, and they are made with elastic at the wrist to keep contaminants from creeping up the skin. Polypropylene laminated jackets are not as breathable. Any spills that happen on them will slide immediately off. Also called PE coated jackets, these lab coats are lightweight. They are low-cost and easy to purchase in bulk, as most pharmaceutical labs are prone to do. Both wholesalers and retailers offer deep discounts for the purchase of large quantities of lab coats.
The lab jacket has come far as protective apparel. Cloth versions have not offered the protective elastic sleeves. The practice has usually been to wear disposable gloves. As some lab workers have discovered, though, chemicals and other materials can still move up the arm to make contact with bare skin. Elastic wrists now make this work danger less likely to occur.