Uv Light In Hvac Effectiveness

Shortwave radiation uv c is emitted from these systems and is most effective at killing mold bacteria and viruses.

Uv light in hvac effectiveness.

The lights used in hvac systems are uv c lights meaning they operate at the c frequency on the spectrum and is between 200 285 nanometers in size. The uvgi light operates within the uv c spectrum which is the effective wavelength spectrum for germicidal efficiency. Uv light penetrates at 254 nanometers wavelength penetrates the nucleus and destroys the nuclei of the mold and bacteria rendering it unable to reproduce and useless. When properly installed and maintained within an hvac system uv lights increase the quality of air in buildings.

Experts believe that improvements to hvac units and the addition of uv lights at the office or at the home can help in the fight against covid 19. Uv lights are particularly effective in humid climates where evaporator coils can easily get wet. Since all of the air passes through the coils this also kills growths in the air. In most residential cases an hvac company will install the uv light near the coils to prevent mold or bacteria growth as air passes through.

There are a couple different set ups for the uv lights in the hvac system. But only certain uv lights can be used in air purification. Uv lights are in the news because of the pandemic but the technology is over 100 years old. Ultraviolet lights specifically germicidal uvc.