Workers are protected against non-hazardous dry particles as well as non-hazardous liquid splash and spray using these aprons. Dust and dirt are examples of dry particles, which are larger than aerosols. When splash comes into contact with a garment, it is either non-pressurized or weakly pressurized, whereas spray is pressurized. Aprons cover the worker's front from the breast to the knee or below the knee. They're also known as bib aprons since they're sleeveless and feature an open back, keeping employees cooler than clothes that cover the front and back.