Ultraviolet (UV) light is a form of short wavelength radiation.
Although exposure to UV radiation from the sun and tanning beds can be dangerous, ultraviolet light has a variety of uses. One of the more beneficial uses is to install UV lights in Air conditioning systems as a way to purify the air.
Indoor air quality can be worse than outdoor air because the ultraviolet component of sunlight destroys microbes.
Unlike filters, which collect pollutants as they pass through the system, UV lights actually kill organic matter, such as bacteria, mold, and viruses. UV light is highly effective at penetrating thin-walled germs like viruses and bacteria. The light alters the genetic structure of the germ and they die.
While UV light sanitation may seem like relatively new technology, the use of UV light to kill germs on surfaces, in the air and in the water dates back to 1916.
UV light has been proven to kill up to 99.9% of germs.
The warmth and moisture found in the Heating, Ventilation and Air Conditioning systems of households and office buildings make the perfect breeding ground for airborne molds, microorganisms and bacteria. These HVAC systems also provide an ideal way to circulate viruses and germs around an entire office building or home in a relatively short time.
Many air conditioning companies offer UV sanitization but not all are equal and UV lights will be more or less useful depending on the environment they are placed in. The effectiveness of UV lights depends on the UV irradiation dose, the system design, age of the lights and other factors.
There are many different types of UV sanitization systems. One of the systems we recommend is most effective when the ultraviolet rays from the probes shine on the cold air side of the air conditioner evaporator coil. This keeps the evaporator coil in a healthy condition by eliminating the normal mold, algae, slime, and gel formations that can act as breeding areas for bacteria. This also prevents buildup that can plug the coil, inhibit air flow, and increase cooling costs. A very thin film just .002'' thick on your indoor coil is all it takes to reduce airflow by as much as 9%*. UV Lights can clean the coil and virtually eliminate additional build up.
They can help to rid your home of bacteria, viruses and germs that reside in the air you breathe every day. UV lights will prevent these and other particles from building up on the indoor coil which can inhibit airflow and reduce heating and cooling efficiency.
When the UV Lights are properly mounted inside your system near the indoor coil, they will direct UV light to the source of potential fungal and microbial growth. When combined with a Bryant high efficiency air cleaner, you can enjoy substantial improvements to the quality of your indoor air.
UV Lights retain their effectiveness for 1 ½ to 2 years. After the initial installation, additional replacement bulbs are relatively inexpensive. Depending on the age and condition of the existing HVAC system and/or ventilators, it is suggested to assess the unit to determine what needs to be done prior to installation of UV lights
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