Your home’s indoor air quality plays a big role in your overall comfort. Biological pollutants like bacteria and mold spores, airborne pathogens and gaseous contaminants can spread throughout the home, triggering lung and throat irritation, asthma symptoms and sinus problems in many people. Proper ventilation and filtration are two good ways of keeping things under control. However, having a UV light installed in your home’s HVAC system can do wonders for improving indoor air quality.
How UV Lights Work
UV lights use ultraviolet radiation to target bacteria, mold, mildew, airborne pathogens and other micro organic pollutants. At certain frequencies, UV radiation acts as a mutagen, causing changes to the DNA makeup of most mold, bacteria and other pathogens. These changes involve destroying the chemical bonds that hold the DNA together. Since these changes can’t be repaired by the bacteria, their ability to reproduce is disrupted and the bacteria eventually die.
UV radiation has been used successfully in commercial and industrial applications for many years. It doesn’t leave any residual radiation behind, making it one of the safest ways of sanitizing food, surfaces and indoor air.
UV Lights and Your HVAC System
Most UV light systems are fitted within the air duct of an ordinary HVAC system, downstream of the air filter or upstream of the unit’s cooling coil. These systems are also placed within a portable air cleaner located downstream of the filter. Once installed, exposure to ultraviolet radiation deactivates and eventually kills airborne and surface pathogens, reducing the presence of mold spores and bacteria in your home’s indoor air.
While UV light exposure kills up to 99 percent of surface bacteria, it only kills up to 30 percent of airborne bacteria. For this reason, UV lights are often used as supplemental devices in conjunction with HEPA filters and advanced ventilation and filtration systems.
If you’re thinking about having one of our highly skilled HVAC technicians install a UV light system in your HVAC unit, give us a call at AirRite Air Conditioning Company. We proudly provide the Fort Worth and Arlington areas with top-notch service.
Our goal is to help educate our customers in the Fort Worth and Arlington, Texas area about energy and home comfort issues (specific to HVAC systems). For more information about UV lights and other HVAC topics, download our free Home Comfort Resource guide.
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