At 10:24 PM 7/9/2004 -0400, leslee berringer wrote:
Leslee, in fear of getting too far OT, please email me offlist. I have done
considerable research on this subject and own a Lennox PureAir on my central
HVAC. I don't necessarily recommend this unit but I have done a fairly deep
comparison between electrostatic, ionic, ozone, and UV filtration as well as
the various chemical and mechanical filters (Merv and HEPA). I have allergies
which is my main motive for air purification rather than roasting (which
doesn't bother me one bit). But pollen and molds are heavy here in Louisiana.
To make a long story short, really effective air filtration is achieved through
a combination of methods depending on what you are trying to achieve. For
smoke, you need a chemical filter in combination with carbon and mechanical.
And the economics of such should be taken into deep consideration. For example
we all know HEPA filters are expensive and load up quick, plus they are
not really all that effective. If I had to purchase a room unit, these are
very highly rated (and expensive) and they make a model (see GCX series) that
is really good for smoke:http://www.iqair.us/products.cfmHope this helps and please email me if you want to know some pros and cons
of the more common types of filters..