, a liquid chemical used for commercial degreasing and deodorizing to clean fabrics. Perc is a synthetic, volatile organic compound (VOC) that poses a health risk to humans and a threat to the environment. Perc is not only hazardous for dry cleaners or those that bring home dry cleaned clothes. Perc can also get into our air, water, and soil during the cleaning, purification, and waste disposal phases of dry cleaning, according to the EPA.