How Does Germicidal UV Light Work?

September 08, 2020

You probably know that the sun’s ultraviolet light (UV) is to blame for your painful sunburn. But were you aware that another variety of ultraviolet light can be useful for keeping your residence’s air clean?

The sun emits two types of dangerous UV rays, UVA and UVB. These harmful rays can cause sunburn, skin cancer, wrinkles and other kinds of premature aging.

There’s another variety of UV light, called UVC. While direct exposure to this ultraviolet light isn’t good for your skin or eyes, it can safely be used to disinfect air, water and certain surfaces.

AC Sales uses this light in a few of our systems to improve air filtration in Lafayette houses.

Applications for Ultraviolet Light

This distinct wavelength is classified as “germicidal” as it wipes out the DNA of bacteria and viruses. When pathogens move through this light, they eventually cease to exist because they can’t spread.

This makes UVC light a mighty replacement to chemical disinfection. Germicidal light is employed in many disinfection uses, such as medical laboratories and hospitals. It’s also employed to sterilize drinking water and other liquids made in food processing.

It’s growing in popularity to freshen air in houses in Lafayette. That’s because it can also wipe out common indoor contaminants such as mold, mildew and bacteria. This is an additional perk for loved ones who deal with seasonal allergies or asthma.

How to Use Germicidal UV Light in Your Residence

We install a germicidal UV light within your HVAC system’s ductwork. As the light is installed in the ductwork, it makes it compatible with most heating and cooling units. This also keeps its light carefully housed while giving strong disinfection for your home’s air.

Contaminated air is freshened in a two-step process, first flowing through your air filter and then the UV light before flowing across your house. Even when your heat or air conditioning isn’t operating, these lights still work to keep your air, ductwork and home comfort equipment clean.

This whole-house solution is superior to a portable air purifier, which can only clean the air in a single room. Portable air purifiers also can’t freshen your ductwork or the innerworkings of your HVAC system. A clean HVAC system is often a more efficient one that could even run for an extended period of time. And, some portable air purifiers are notorious for making ozone.

When thinking about adding a germicidal lamp to your residence, it’s important to look for one that doesn’t produce ozone. While ozone is good at eliminating odors and chemicals, it could also irritate your lungs and cause other respiratory issues.

If you’re seeking approaches to purify your house’s air, the indoor air quality experts at AC Sales can help. We have a large range of solutions to help your loved ones breathe better. Contact us at (337) 234-2345 to schedule a free, no-obligation home comfort analysis and estimate right away!