aerosolized saponin. By the way, I LOVE your website!  Thank you again. (My sources for the summary above) Hostettmann, K.; A. Marston (1995). Saponins . Cambridge : Cambridge University Press . p. 3ff. ISBN   0-521-32970-1 . OCLC   29670810 .   "Saponins" . Cornell University . 14 August 2008 . http://www.ansci.cornell.edu/plants/toxicagents/saponin.html