Ultraviolet Germicidal Irradiation (UVGI) is a proven technology used to sterilize air passing through Air Handling Unit (AHU) ducts. It uses short-wavelength UV-C light (typically ~254 nm) to kill or deactivate airborne microorganisms such as bacteria, viruses, mold, and fungi. By installing UVGI systems inside AHU ducts, facilities can maintain cleaner airflow, prevent microbial growth on coils and filters, and improve overall indoor air quality (IAQ) without the use of chemicals.

Installing UVGI systems in AHU ducts provides several valuable advantages for both air quality and system performance. The primary benefit is air sterilization, as UV-C light effectively kills airborne pathogens while air passes through the ductwork. This leads to significantly improved indoor air quality by reducing allergens, odors, and the spread of airborne infections. UVGI also helps in preventing mold and biofilm formation on cooling coils and internal surfaces, which commonly affect HVAC systems. As a result, the system runs more efficiently — clean coils enable better heat exchange, which translates into lower energy consumption. 

UVGI systems in AHU ducts are widely used across multiple sectors. In hospitals and healthcare settings, they help control the spread of infections by sterilizing circulated air. Commercial buildings and malls benefit from improved air quality in high-traffic areas. For pharmaceutical and food processing units, UVGI supports compliance with hygiene standards by maintaining sterile environments. In educational institutions such as schools and colleges, these systems reduce airborne transmission risks among students and staff. Finally, hotels and high-end residences use UVGI to enhance guest experience by offering a cleaner, healthier indoor atmosphere.