On Sat, 9 May 2009 10:03:40 -0400, "RBM" wrote:

A customer of mine inquired about a UV filter to install in or on a central
AC air handler to kill mold growing inside the cabinet and duct. Is anyone
familiar with these, that can give me any detail on how and when they are
used and work.

tia, Roy


Do you mean a UV light? I don't see how UV would need to be
filtered in a AC unit, especially I doubt if there would be any
significant amount present normally.

UV lights can kill some of the stuff we don't want in our air,
but it can only kill on surfaces that are illuminated by it or in the
air that passes though the light. I don't think it is especially
effective against molds..