What to Know about Indoor Air Quality and UV Light

UV Lights

When the outdoor air quality in Northern Georgia is poor, most people try to remain indoors to help minimize exposure to the particulates and other dangers in the air. However, in many cases, indoor air quality is often worse than outdoors. Poor air quality can cause short-term issues such as respiratory distress, a runny nose, and watery eyes. But there can also be more serious long-term effects, including chronic respiratory problems and other illnesses. It’s a good idea to get indoor air quality testing in Gainesville, GA, so that contaminants such as mold, viruses, bacteria, and pollen can be identified in your home’s air. Air quality tests can also help determine the need for air quality systems, including air cleaners, ventilators, dehumidifiers, and UV lights. Here’s what you need to know about using UV lights for air purification.

Problems with Poor Air Quality

As mentioned, poor air quality can cause physical symptoms because of the small particles, such as mold and dust, in the air. But there are other problems to consider as well. Contaminants in the air can cause unpleasant odors that can become extremely bothersome for some people. Infectious diseases from bacteria and viruses can also be easily spread throughout your home’s HVAC system. The air filter plays a large role in removing many of these particles, but to remove more dangerous organisms, such as mold, bacteria, and viruses, you need something that can actually kill them rather than simply trap them. UV lights are one tool that can be beneficial in destroying these dangerous organisms.

How UV Light Works

UV lights have a practical air purification application because they destroy the DNA of bacteria, viruses, and other pathogens. When the DNA is disrupted in this way, the organism is unable to repair itself or reproduce so it can no longer infect people and cause illnesses. The lights used in air purification emit a specific wavelength so that pathogens are killed without increasing risk to the home’s occupants. In general, the range of UV light that’s considered most effective as a germicide is 254-264 nanometers.

Where Lights Are Used

The UV lights must be strong enough to emit germicidal rays powerful enough to destroy the DNA. The lamps or devices are typically placed either in the ductwork or on the coil as part of the air handler. This is important because any air that passes through the UV light is subject to enough radiation to kill the organism, but there are no radiation exposure risks to those in the home. The dangerous pathogens are destroyed before they even start to circulate through the home.

Benefits of UV Light Air Purification

The most important benefit of this type of air purifier is that you’re subjected to fewer pathogens that could make you ill. Better overall air quality is beneficial to those who have asthma or other respiratory issues. In addition to the health benefits, your HVAC system can benefit as well. The UV light also kills mold, which can sometimes be a concern when it starts to grow on the indoor coil of the HVAC system. There’s no change to the airflow when a UV light is installed, and in fact, there’s better airflow since contaminants can block airflow. It also operates silently, so there are no negative side effects to deal with. To determine if UV purification is right for you, contact Gainesville Mechanical for residential indoor air quality testing in Gainesville, GA.

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