Protective smocks and lab coats protect workers from chemicals, flames, liquid splash and particulates and prevent the spread of contaminants. They come in different types that offer specialized protection. Cleanroom lab coats prevent the buildup of ESD (electrostatic discharge), while heat- and fire-resistant lab coats protect against sparks and flames. Chemical-resistant lab coats protect against nonhazardous chemical splash, pathogens and particulates. Protective smocks and lab coats are made of lightweight, breathable materials. Some styles may come with pockets.