How does the
The UV-Aire installs inside the main ductwork or plenum of a forced
air heating or air conditioning system. As air passes the lamp, it is
treated with powerful UV-C rays, which reduce airborne contamination.
2. What is UV-C light and how does
it kill bacteria?
UV-C is the invisible, ultraviolet, C-band radiation that makes up
part of the sun's light spectrum. UV-C light prevents growth and
germination of microorganisms by altering the DNA and RNA and effectively
sterilizing the organisms. Once sterilized, they cannot reproduce and with
their short life cycles, they are effectively killed.
3. How long has UV been used in air
Since 1936, UV has been used to sterilize air. It was first used to
purify air in a surgical operating room. UV has been used in schools to
decrease the growth of epidemics such as measles and tuberculosis. Other
applications include: barber shops, restaurants, incubation rooms,
veterinary clinics, and hospitals.
4. Why use a UV light product?
There are two primary benefits to using UV light. The first is to use
UV light to radiate a surface to keep mold from growing in that area. The
other use is, disinfecting the air stream as it passes through the HVAC
system. A high disinfection rate is not generally accomplished in the air
stream in one pass over the UV lamp. However, a significant disinfection
rate is accomplished with repeated circulation of air through the system,
making use of UV light very beneficial.
5. What is the importance of UV
People spend over 90% of their time indoors. With little or no
ventilation, concentrations of microorganisms will increase indoors,
potentially spreading a number of diseases. With increased cases of deaths
being caused by various bacterial diseases, controlling the growth and
spread of pathogens is of major concern in indoor environments. According
to indoor air quality experts, controlling airborne microorganisms is the
next major challenge of the HVAC industry.
6. How does UV-Aire differ from
other UV-C devices?
UV-C energy has been successfully used in many indoor environments.
UV-Aire was developed specifically for use in HVAC systems. It creates a
consistent, high output of UV-C energy. The UV-Aire's intensity output
maximizes microorganism disinfection and ensures cleaner indoor air.
7. Is the UV-Aire harmful in any
Direct exposure to UV light is not recommended, as it may cause damage to
skin and eyes. UV light does not pass through solid materials such as
plastic, glass or metal ductwork. Properly installed inside the duct, the
UV-Aire is a safe and practical product.
8. What effects will UV-C rays have
on plastics such as coil pans?
If the plastic is not UV resistant, UV-C can cause a breakdown of the
material over time. Based on lab tests, positioning the lamp 30 inches or
more away from plastic surfaces will eliminate any measurable breakdown of
9. Is it affordable?
Compared to high costs of medical treatment and missed work as a result of
poor indoor air quality, the UV-Aire pays for itself quickly. The UV-Aire
costs only pennies a day to operate, consuming about the same amount of
energy as a 30-watt light bulb.
10. Is the product suitable for
people with severe allergy or asthma problems?
Yes. The UV-Aire can offer relief to many allergy and asthma sufferers by
reducing airborne contamination. However, the device is not exclusively
for people with respiratory disorders. Your entire family can benefit from
breathing healthier air.
11. Does the UV-Aire produce a fresh
Many smells are not addressed by the UV-Aire. However, some unpleasant
smells develop from the growth of microorganisms. The UV-Aire works to
reduce mold and other common household germs, in many cases resulting in a
fresher smelling environment.
12. Is the technology proven?
Yes! UV-Aire and other UV products have been installed in all types of
buildings including: homes, hospitals, offices, public buildings, food
preparation plants, electric utilities companies, and more. Users
consistently report improvements in air quality and reduced respiratory
13. Does UV light take the place of
No. The UV-Aire should be used in conjunction with a filter. HVAC filters
trap airborne particles based on their size, allowing most microorganisms
to pass through undeterred. The Ultraviolet light attacks microorganisms.
It is recommended to install the UV-Aire downstream of the air filter.
14. How can I get the product
installed in my home?
Please contact our office to schedule an installation date.
15. How long does installation take?
Installation generally takes less than an hour.
16. Why does the unit remain on at
Microorganisms like moist, dark places. When the light remains on, the
reproduction of these organisms may be reduced. It is also
more energy efficient to leave the lamp on continuously. Similar to
fluorescent lights, the energy required to start the UV lamp is high,
while operating energy is low.
17. Should the HVAC appliance fan or
blower run continuously?
No. This is not necessary. During normal operation of the heating or air
conditioning, the blower will circulate the air over the UV lamp from
50-75 times a day, which is sufficient. During moderate weather, when
neither the heating or air conditioning is on, it is recommended to open
the windows to allow for fresh air infiltration and/or to operate the
blower continuously (turn on the fan) to circulate air over the UV light.
18. What kind of maintenance is
It is recommended to periodically inspect the lamp's operation through the
view port to ensure the lamp is on. It is also necessary to change the UV
lamp annually, as the intensity of the lamp's output diminishes over time.
The changing of the UV lamp should be done during annual air conditioning
or furnace Inspection.
19. Does the lamp require cleaning?
Dirt and oil on the surface of the lamp reduce output intensity. Upon
installation, the lamp should be wiped with the alcohol swab provided. The
lamp may need to be cleaned every 3 to 6 months depending on its operating
environment. Simply remove the lamp and wipe with alcohol. Avoid touching
the lamp with bare hands. The oils in your hands may reduce UV output.
20. Why does the lamp require a
After 9,000 hours of operation, 375 days, the lamp starts to become "solarized".
The UV-C output is reduced to around 80% of its original intensity, which
steadily declines thereafter. The lamp will still be illuminated,
producing visible light. However, UV-C light will diminish reducing
21. How much electricity does the
Approximately 30 watts with 1 lamp and 60 watts with 2 lamps.
22. What is the best location for
Install the UV-Aire in either the supply or return plenum of the warm air
heating system. With air conditioning systems, the best location is over
the air conditioning coil.
23. Why above the air conditioning
Moisture accumulates on the air conditioning coil, creating a damp surface
for growth of mold and microorganisms. With the UV lamp over the air
conditioning coil, the lamp constantly soaks the coil with its rays,
effectively disinfecting the air as well as keeping the coil clean.
24. Can the UV-Aire be installed in
the return air?
Yes! An optional location is the return air. We suggest the unit be
located upstream or prior to the humidifier. This should prevent the lamp
from getting water spots, which reduce UV output.
25. How long is the warranty?
The warranty is one year from the date of purchase for the unit and 30
days for the lamp.
26. Why use eye protection?
UV light cannot be seen. When you look at a UV lamp, you are seeing the
visible light, not UV light. There are several bands in the UV light
spectrum. UV-C is used to control mold and microorganisms. UV-C light will
damage human tissue following continuous exposure and can severely burn
the eyes. A glance from a distance may not be a problem. But, looking at a
UV-C lamp close up for 5-10 seconds could damage the eyes. Protecting the
eyes with plastic protective goggles is recommended.
27. What is the meaning of
microwatts per centimeter at 1 meter?
This is an intensity rating: the amount of UV-C energy exposed onto one
square centimeter of surface area on a target placed 1 meter from the
What precautions should be taken before opening or servicing the ductwork
where a UV-C lamp is in use?
The UV-C lamp should be turned OFF prior to entering the ductwork. An
external switch is provided as well as warning labels regarding service