ACGIH® is a 501(c)(3) charitable scientific organization advancing Occupational and Environmental Health and Safety (OEHS). For nearly 85 years, ACGIH has been respected for its dedication to the industrial hygiene and occupational and environmental health and safety communities. We have grown and expanded without losing sight of our Mission: To advance occupational and environmental health globally by providing education programs, scientific data, and technical knowledge to OEHS professionals in the interest of workers and the public. Visit acgih.org for more information.