Biosan Peracetic Acid: Sanitizing Solutions for a Better World. Biosan Peracetic Acid (PAA) is a powerful oxidant with efficacy against a wide range of microorganisms. In the environment, it breaks down quickly to harmless acetic acid (vinegar), oxygen and water, making Biosan Peracetic Acid safe for bleaching, sanitation, disinfection and sterilization across numerous industries, including organic food production. Today, Biosan Peracetic Acid is hard at work in hospitals, nursing homes, breweries, food and beverage processing plants, farms and other facilities with strict standards for hygiene and sanitation. Safety precautions should be observed for the storage and handling of Biosan Peracetic Acid. Occupational exposure limits for peracetic acid have recently been released by the American Conference of Governmental Industrial Hygienists (ACGIH).