Hawkeye

a quick check of OC's MSDS info shows: In October 2001, the International Agency for Research on Cancer (IARC) classified fiber glass wool as Group 3, Not classifiable as to its carcinogenicity to humans. The 2001 decision was based on human studies and animal research that have not shown an association between inhalation exposure to dust from fiber glass wool and the development of respiratory disease. In May 1997, the American Conference of Governmental Industrial Hygienists (ACGIH) adopted an A3 carcinogen classification for glass wool fibers. The ACGIH A3 classification considers glass wool to be carcinogenic in experimental animals at relatively high doses, by routes of administration, at sites, or by mechanisms that it does not consider relevant to worker exposure. It also reviewed the available epidemiological studies and concluded that they do not confirm an increased risk of cancer in exposed humans. Overall, the ACGIH found that the available medical/scientific evidence suggests that glass wool is not likely to cause cancer in humans except under uncommon or unlikely routes or levels of exposure. Conclusion: glass wool is not likely to cause cancer in humans except under uncommon or unlikely routes or levels of exposure.