I just installed a UV filter for the furnace after reading all the good
things here and elsewhere.
I taped up the cold air return and Spaceguard filter with foil tape before
installing the UV filter. I saw a couple of leaks I missed when I first
fired it up. So I unplugged the filter and taped up the spots I missed. But
there are still a couple of indirect leaks (glow) around the humidifier and
the hatch for the Spaceguard filter. I plan to tape around the humidifier,
but I really can't tape up the door for the Spaceguard filter. Since the
furnace is in an enclosed space which keeps out man and beast, how worried
should I be about these minor leaks. Do I need to use a regular bulb (non
UV) to ferret out any small leaks?
Also I plan to write a few warnings here and there so the HVAC guy doesn't
blind himself come the annual cleaning. But I gather this is not a huge deal
or they would provide a few labels with this thing?
Depends on what wavelength and intensity the lamp
is running at.
Almost always the manufacturer (presuming it's not
a cheap overseas import, but even then one would
expect it to comply with US FDA regulations regarding
emission levels if it's being imported for sale in
the US), state safety precautions one should take
when servicing the lamps (or for that matter normal
day to day operation).
I think you have a legitimate concern, but my
involvement is with the type of UV equipment (and
lasers) that would most definitely be harmful to
Contact the manufacturer and find out what they
have to say on the topic.
A sidenote, UV lamps used for "tanning" emit a
different wavelength than ones used for cancelling
microbial organisms. Even then, most tan booths
require the victim to wear safety goggles that
filter out the otherwise harmful spectrum slice
that would fry their retinas/corneas.
keep this in mind when working near ANY UV
(unrelated, i once witnessed a fellow worker
put his hand into the path of an invisible
wavelength high power laser beam - it punched
a hole clean through his hand - cauterizing
the flesh in the process. he didn't feel any
pain at the time of the mishap - but about a
minute later - look out ! the guy was in agony).
what you can't see/feel - CAN hurt you !
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