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Re: GBlist: HEPA-filter vacuum cleaners




In a message dated 4/24/97 6:57:16 PM, you wrote:

<<Would those water vacuum cleaners be good?  They are brand name 
Rainbow, I think.  Wouldn't the water take out more than any cloth or 
paper filter?>>
Air bubbling through water removes some of the particles in the air, but
anything in gas form migrates both ways, according to partial pressures.
 There are some great studies of contaminants from the Hudson being
aerosolized by the surf on New York and New Jersey beaches.  Pretty much
everything volitile in the river comes back on the breeze.
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