UV Light Installation and HVAC Air Purification Systems

REME HALO and HALO-LED whole-home air purification systems

How UV Lights Work in HVAC Systems

Ultraviolet germicidal irradiation (UVGI) uses short-wavelength UV-C light to damage the DNA and RNA of microorganisms, preventing them from reproducing. When installed inside your HVAC system, UV lights expose air passing through the ductwork to UV-C energy. Bacteria, mold spores, and viruses that pass through the UV field are inactivated before the air reaches your living spaces.

UV lights serve two purposes in an HVAC system:

UV lights work continuously while the HVAC system operates, treating air passively without producing any noticeable change in airflow, temperature, or noise.

REME HALO and HALO-LED Systems

Full Nelson’s preferred whole-home air purification system is the HALO-LED, which uses RGF’s patented PHI (Photohydroionization) and REME (Reflective Electro Magnetic Energy) technologies. Unlike standard UV coil lights that only treat air passing directly over the lamp, the HALO-LED generates ionized hydroperoxides that travel through the ductwork and into occupied spaces, actively neutralizing contaminants on surfaces and in the air throughout the home.

Key features of the HALO-LED system:

The HALO-LED is designed for unlimited cycling capability, turning on and off with the HVAC system without degrading performance.

Types of HVAC UV Light Systems

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These lamps mount inside the air handler and shine directly on the evaporator coil. They run continuously (even when the blower is off) to prevent mold growth on the coil surface. Coil UV lights are the most basic and affordable UV option. They protect the equipment and reduce musty odors but do not actively treat air throughout the home.

Installed in the return or supply duct, these lamps expose moving air to UV-C energy. Air passes through the UV field each time the blower cycles, and repeated exposure over multiple passes reduces the overall microbial load in the home. These systems are more effective than coil-only lights for reducing airborne pathogens.

Systems like the HALO-LED go beyond passive UV exposure. They generate oxidizing agents that are distributed through the ductwork into occupied spaces, actively treating air and surfaces throughout the home. These systems provide the highest level of whole-home air purification available through an HVAC-integrated product.