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 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 Clean Comfort light kit 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 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 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 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. Clean Comfort 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 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.