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Frequently Asked Questions
What are the
primary benefits?
What is the importance of UV-C light?
What is UV light?
How does it work?
Do I still need an air filter?
How much maintenance is required?
How much electricity does UV-C light use?
How many lamps do you recommend for home installations?
What
are the primary benefits?
UV-C light will significantly reduce the amount of microbials in ductwork and air
space, helping to reduce possible health
problems associated with inhaling microbials. UV-C light is also beneficial
in keeping HVAC coils free of mold which
increases system efficiency.
What is the
importance of UV-C light products for indoor environments?
Overall, people spend 90% of their time indoors, in a "closed" environment
with little or no exchange of outside air. Such an environment can become
a breeding ground for potentially harmful pathogens, and in high numbers,
can prove hazardous to human health.
What is UV Light?
UV stands for Ultra-Violet light. Ultraviolet light represents the
frequency of light between 200 nanometers (nm) and 400nm and cannot be
seen with the naked eye. Within the UV spectrum lie three distinct bands
of light: UV-A, UV-B, and UV-C. Longwave UV light (315nm to 400nm), or
UV-A, refers to what we commonly call "black light." UV-B (280nm
to 315nm), or midrange UV, causes sunburn. Germicidal UV light (200nm to 280nm), or UV-C, is effective in microbial
control. Research has demonstrated that within this UV-C band the most
efficient frequency for microbial destruction is between 254nm and 265nm.
Germicidal lamps that produce the majority of their output in this range
will be the most effective in microbial control/destruction.
How does it work?
UV-C light emitted by the Bio-Fighter® penetrates the cell walls of the microbe, causing
cellular or genetic damage. The affected microbe is neutralized or becomes
unable to reproduce. Intensity and
exposure time will determine how quickly a susceptible microbe is disabled
by UV-C light.
Do
I still need an air filter?
Yes. The Bio-Fighter® is designed to be used in addition to a dust filter or electronic air
cleaner and the filtration of dust particles will also aid in keeping the
bulb(s) of the Bio-Fighter® unit clean. However, filters are inefficient at dealing with
microscopic bacteria, molds, and viruses and are incapable of preventing
mold from growing on a surface. The Bio-Fighter® UV-C Light System
contributes significantly to the reduction of the small microbial
organisms that pass through filters and into the general air stream.
Proper placement of the Bio-Fighter® unit above the coil, or a surface area
prone to microbial growth aids in reducing the amount of viable microbes
on that surface.
How much maintenance is
required on a UV light product?
Lamps should be cleaned by a professional every six (6)
months to remove any dust accumulation on the bulbs that might lessen the
effectiveness of the UV-C light. The Dust Free UV-C light bulbs have a
service life of 9,000 hours, or approximately 375 days. Annual replacement
of the bulb(s) is recommended. Bio-Fighter® UV-C units should be left on
continuously as turning them on and off ages the bulbs and power supplies.
How much electricity does UV-C light use?
Each tube uses approximately the same electricity as a 40-watt light bulb.
How many lamps do you
recommend for home installations?
One lamp is normally sufficient to control microbial growth on the coils and in the drain
pan. The lamp size used should be proportional to the space that is available in the coil
and drain pan area. However, since each HVAC system is as different as the
building within which it functions, the Bio-Fighter® UV-C Light System most
suitable for your needs should be recommended and installed by a
professional trained in UV-C light use and application.
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