Long time lurker, first time poster - I thought some of you, like me, might have these devices but not gotten the word. Brookdale International Systems, Inc., the maker / distributor of various smoke hoods, has issued a safety notice about these items stating in part that the hoods should not be used. Read it online here:
http://www.evacsafety.com/en/suspend_use.pdf
They say that within 30 days of March 10, 2006, the company will issue further info about the situation.