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Petri Dish
The Petri dishes (top)have high
concentrations of bacteria, mold and yeast. After exposure to a UVC
Emitter (bottom), these microbes are almost completely eliminated.
UV Lighting
Here are some questions and
answers that will explain what UV lights are and their use:
1. How do UVC Lights work?
UVC Lights use Ultraviolet
energy. UVC energy penetrates even the tiniest microbe to
destroy its DNA, killing or deactivating it.
2. How are the UV Lights provided by Dusty Ducts
different from other UV devices?
We use only the best UV Lights, which are developed specifically
for use in A/C systems. It offers its peak performance under
extreme operating temperatures, delivering up to five times the
output of conventional UV lights. The result: - it has the
highest microbial destruction rates, for clean, germ-free air.
3. Is it harmful in any way?
No. Dusty Ducts uses UVC Lights
that destroy organisms without producing toxic ozone, fumes or
secondary pollution. It poses no risk to people, furnishings or
equipment. (Direct exposure to the light itself is not
recommended.)
4. Is the technology proven?
Absolutely! The UV products that
Dusty Ducts uses have been installed in buildings all over the
U.S. and Asia - including hospitals, schools, offices, public
buildings, food processing plants, electric utilities and
residences.
5. Is the product suitable for people with severe allergy or
asthma problems?
Yes, UVC Lights have afforded
relief to people suffering from chronic upper respiratory
problems. But the device is not limited to households with
"special problems." Everyone benefits from the clean, healthy
indoor environment that results when your A/C system is bathed
in UVC Lights' germicidal energy.
6. How do UVC Lights produce a fresh-air smell?
Mold, mold products and decaying
matter produce unpleasant or musty odors. In destroying mold, UV
Lights stops these odors.
7. Is it affordable?
Some users report that UVC Lights
pay for itself due to lower medical and pharmacy expenses,
energy savings and the reduced need for A/C system maintenance.
After the initial installation, UV Lights costs only pennies per
day to operate... consuming about the same amount of energy as a
75-watt light bulb.
8. What is UVV?
UVV light refers to another
wavelength in the ultraviolet spectrum. Some UV devices, offered
by other duct cleaning companies, also produce light in this
wavelength. The manufacturers of these devices promote UVV as an
added tool for IAQ control, saying that UVV attacks
microorganisms, chemicals, and odors. While this may be true, it
is important to understand that UVV (unlike UVC) will also
"attack" occupants in treated spaces by adversely effecting
human lungs!
The reason for this is that the shorter (185 nanometers)
wavelength of UVV light (used by other duct cleaning companies
)actually generate ozone. This occurs because UVV light reacts
with oxygen to break it into atomic oxygen, a highly unstable
atom that combines with oxygen to form O3 (ozone). The American
Lung Association states that "exposure to ozone causes a variety
of adverse health effects, even at levels below the current
standard." And the U.S. Food & Drug Administration says: "In
order for ozone to be effective as a germicide, it must be
present in a concentration far greater than that which can be
safely tolerated by man and animals." The longer (254
nanometers) wavelength of UVC light offered and used by Dusty
Ducts, by contrast, provides highly effective air, surface, and
water disinfection without producing any harmful ozone.
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