Guest guest Posted January 7, 2007 Report Share Posted January 7, 2007 This link was recently passed on to me and I think some may find it interesting. Enjoy! md The University of Chapel Hill did a research study that talked about cleaning (university buildings), how it was done and comparisons of various methods. The 52-page report can be downloaded from http://www.fac.unc.edu/portals/0/sources/os1.pdf Mark Doughty President Doughty Environmental Hygiene Associates P.O. Box 159 Stockbridge, VT 05772 deha@... If you plant ice you’re gonna harvest wind. – Hunter Quote Link to comment Share on other sites More sharing options...
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