how a uv light purifies the air

Although you may have invested in a high-quality air filter, your HVAC system might not be filtering out all the contaminants that it could be. Some of these particles are excellent at filtering through the cracks and infiltrating your home, and you might be wondering how you and your family could still be getting sick.

To really make sure you’re vaporizing all of the potentially harmful pollutants, you’ll need something else. With a UV air purifier, you’ll be at ease knowing that your air will be free of the icky airborne particles that get you sick once and for all. But how exactly does a UV light help clean your air? It might not make a ton of sense on the surface, but it’s actually quite simple!

What is a UV Light?

You’re probably familiar with UV light already. If you’ve ever been sunburned, then you and UV lights have already gotten to know each other pretty well. UV light, or ultraviolet light, is a form of electromagnetic radiation emitted in the form of invisible light. It’s divided into three categories: UV-A, UV-B, and UV-C light, but UV-C light is the one we’re dealing with here.

UV light has been used as a disinfectant and to treat medical conditions for over 100 years, and it does so by aggressively disrupting the DNA of the bacteria that is responsible for these situations. UV-C light, which is the type of UV light used in air purifiers, operates in a wavelength anywhere between 100-280 nanometers long.

How a UV Light Purifies Your Air

When you install a UV light in your air purifier, the technician will place it in an area where it will come directly into contact with the air that flows through your circulation system. Even if pollutants manage to slip past your filter, the air purifier will zap them and rid these contaminants of their ability to multiply and infect your home.

The power in a UV-C air purifier lies in its skill at destabilizing cells’ DNA. When bacteria comes into contact with UV-C light, its DNA is thrown for a loop. The UV-C light scrambles the cell’s DNA, effectively making it destroy itself. You avoid these pollutants, and everyone stays healthy!

 If It’s Dangerous, Will I Be Affected by the Light?

Nope. UV air purifiers are installed away from any place in your home that could expose you to it. Here, they’re housed in a small chamber in the circulation system. This ensures that none of the UV-C light waves escape into your home. It’s as safe as can be!


UV lights can provide a sense of safety and security that you might not get otherwise. Have you and your family have noticed that you’ve gotten sick lately and can’t figure out why? It might be because some particles are filtering through your circulation system despite your best efforts. A UV light will fix that, leaving your air fresh and clear of contaminants for good.

Freedom Air & Heat specializes in providing the highest indoor air quality solutions for our neighbors, and we’re ready to help make a cleaner home a priority for you. Give us a call at 321-631-6886 to speak to one of our team members!