How Does Ultraviolet Light Kill Virus and Bacteria?

Overall peace of mind and sense of safety in your home is paramount, and a modern, well-maintained HVAC system contributes greatly to a healthy in-home environment in many ways.

At UGI Heating, Cooling & Plumbing, we strive to stay ahead of the curve when it comes to customer safety, and with the COVID-19 pandemic, we wanted to bring to light a technology that can destroy viruses and bacteria – ultraviolet light.

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UV light is a well-studied, dependable, efficient, environmentally friendly and chemical-free way to prevent microorganisms from replicating in any environment. The high-energy portion that’s most effective within the UV spectrum, UV-C, makes this technology work primarily by destroying the DNA inside bacteria, viruses and fungi.

Here’s how your HVAC system can be a strong line of defense for you and your family during the pandemic and beyond:

Air purification, with a focus on UV lights to kill any bacteria and viruses, is more vital now than ever before.  A good quality air cleaner and humidifier can ensure safe, clean air in your home or business, as they were shown to prevent the growth of viruses.

Very low temperatures and very low humidity (30%) have been shown to enable viruses to survive for long periods on surfaces and in the air.  By altering indoor conditions, we can reduce the rate of transmission from human to human, as confirmed by a study cited on  However, conditions in homes and in public places are generally set to 68 – 76 degrees for comfort.

While it would be costly and unpleasant to raise indoor temperature, air humidification and purification can act in a proactive way to fight the spread of viruses in your home.  Since humidification provides more efficient cleaning of the airways, it also enhances a person’s respiratory tract’s defenses and immune defenses.  It’s, therefore, recommended to set your home humidity level at around 45 percent to breathe easier, in more ways than one.

To keep your indoor air – and your family – healthy, consider using whole-house air treatment systems, such as APCO and REME HALO.

APCO® whole-house air treatment systems feature a unique combination of UV-C light and activated carbon, which achieves unmatched microbial and odor reduction without producing any harmful ozone. The technology helps detox the air as your HVAC system circulates it.

REME HALO-LED™ is an award winning, next generation whole home in-duct air purifier, capable of purifying every cubic inch of air that your central heating and air conditioning system reaches. It is “the industry’s first LED in-duct, whole home air purification system that is both mercury free and zero ozone compliant”. Thoroughly tested on airborne and surface bacteria and viruses, such as MRSA, e-coli, and Norwalk, to name a few, the REME HALO-LED also will reduce common allergy triggers from particulates, such as pollen, mold spores, dander and dust.

If your HVAC system utilizes air ducts, you should consider HALO-LED™. It turns on and off with your blower for efficient energy usage, and the ultra-long-life technology will assure this unit serves your home for years to come.

Other ways to keep your indoor air healthy include keeping your home clean and aired, keeping the greenery outdoors, and changing your filters regularly.

To get optimal benefits and protection from your HVAC system, always choose to install quality equipment and maintain and service it regularly. If it’s time to upgrade or replace your system – turn to UGI Heating, Cooling & Plumbing for all of your whole-home HVAC needs in Lancaster, PA, Reading, PA, Harrisburg, PA, and Bethlehem, PA.

Keep your indoor air quality and your whole family healthy – Connect with us now or call us at 1-833-980-3496.