Ultraviolet
Air Purification

Benefits of HVAC UV Light Systems

Here are just a few of the benefits home and business owners can gain from investing in UV lights:

  1. Bacteria and virus elimination. For individuals highly susceptible to illness or for high-risk environments, built-in UV lights offer complete sanitization. Some systems can eradicate nearly all microscopic contaminants in an environment. Removing these contaminants will improve the smell and feel of the air in a home, too.

  2. Mold and fungi management. Mold can grow inside a system, causing health problems such as skin and eye irritations or respiratory illness. Removing mold can be expensive and time consuming. UV lights keep mold and fungi at bay.

  3. Peace of mind. Investing in UV lights means not worrying about a filter letting through some contaminants. The unit will sterilize all surfaces the light can reach and reduce the risk for contamination in other areas of the unit. The lights are very cost-effective.

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Does UV Light Kill Coronavirus?

UV Light Kills Coronavirus

For several decades, it has been known by scientists that broad-spectrum germicidal UV light, with wavelengths between 200 and 400 nanometers (nm), is very effective at killing bacteria and viruses by destroying bonds that hold their DNA together. This standard UV light is often used to decontaminate surgical equipment. Unfortunately, these conventional germicidal UV lights are also a health hazard to humans and can lead to skin cancer and cataracts, which prevents the use of UV light in public spaces.

The virus is sensitive to ultraviolet heat and light, so radiation from ultraviolet light can eliminate the virus effectively, according to the latest guideline on diagnosis and treatment of the coronavirus released by the National Health Commissions.

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Will UV Light Kill Viruses? Or Hurt People?

Physicians hypothesized that a narrow spectrum of ultraviolet light called Far-UVC could kill microbes without damaging healthy tissue several years ago. Far-UVC light has a very restricted range and can not penetrate the outer layer of the human skin or tear layer in the eyes. Because of this, it is not a human health hazard, but because viruses and bacteria are much smaller than the cells of humans, far-UVC light can reach their DNA, effectively killing them. All this without damaging human tissue.

According to health guidelines, ultraviolet light should be used to disinfect indoor spaces with an intensity of 1.5 watts per square meter. A UV lamp can disinfect any object within one meter for at least thirty minutes.