It is a brand. It uses a central container of water as the filter medium and you dump the water and the crap out (lots and lots of crap) after each time you use it. Or, you can set it in the middle of the room running for about 20 mintutes and then just look at what it has taken out of the air. The newer ones run a hepa filter as well (E2) and the rainbow and the Miele high end machine are the only two that our Ms T can use and live with.
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Date: 2007-10-22 08:07 pm (UTC)for example: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230182383231&_trksid=p3907.m32&_trkparms=tab%3DWatching