Formaldehyde is an important industrial chemical used in the manufacturing of other chemicals, building materials, and household products. It is one of the large family of chemical compounds called volatile organic compounds or “VOCs”. At normal room temperatures these compounds vaporize. When present in air at levels above 0.1 ppm it can cause watery eyes, burning sensations in the eyes and nasal passages, as well as coughing, wheezing, and allergic reactions. Formaldehyde has been classified as a potential carcinogen and, as such, is regulated in many countries: Japan, 0.08 ppm; World Health Organization Europe, 0.08 ppm; Sweden, 0.1 ppm; US Department of Housing and Urban Development, 0.4 ppm.