Newsgroups: sci.electronics
Path: utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: Need help with part number--Ultrasonic Humidifier
Message-ID: <1990Jan18.163212.15549@utzoo.uucp>
Organization: U of Toronto Zoology
References: <1990Jan17.191432.5620@gpu.utcs.utoronto.ca> <78762@psuecl.bitnet>
Date: Thu, 18 Jan 90 16:32:12 GMT

In article <78762@psuecl.bitnet> peg@psuecl.bitnet (PAUL E. GANTER) writes:
>Apparently, there is controversy over the safety of ultrasonic
>humidifiers.  Unlike other types, they apparently put large
>amounts of particulates into the air (mold spores, pollen, minerals,
>bacteria)...

References?  They do put out a lot of dust, but it is sterile dust -- the
intense ultrasound kills anything in it.  That was the situation last I
heard, anyway.
-- 
1972: Saturn V #15 flight-ready|     Henry Spencer at U of Toronto Zoology
1990: birds nesting in engines | uunet!attcan!utzoo!henry henry@zoo.toronto.edu