HVAC systems work for the entire day. Sometimes, they work non-stop. As a result, the moist parts inside the system could become an ideal space for mold & mildew to grow. And as the system works, these particles enter your place. As a result, indoor air quality becomes a matter of concern. If you do not use UV light for HVAC systems, there is no way to stop these particles from worsening your health. So, if you haven’t installed UV lights within HVAC systems, do it now. Explore all the products at Light Spectrum Enterprises.