This HVAC duct purifier delivers efficient air purification with an 18-Watt UVC lamp, emitting 254nm ultraviolet light to effectively eliminate most harmful substances from duct surfaces, improving indoor air quality for a clean, healthy environment. Built for reliability and longevity, its lamp tube boasts an 8000-hour lifespan and includes 2 spare lamps to extend overall use—note that frequent on/off cycles should be avoided for optimal durability. Featuring a straightforward mechanical switch control and clear LED indicator (showing UV-C bulb status), it’s effortless to use and maintain. The 1.5-meter extended power cord offers flexible installation options, making it suitable for various HVAC system setups. With an effective purification area of up to 600 square feet, it’s ideal for homes, offices, schools, hospitals, and other spaces with large-scale HVAC systems. Assembly is quick and simple, even for beginners, thanks to the detailed manual and complete accessory set that enables fast setup. Practical, durable, and high-performance, this UVC duct purifier provides a reliable solution for enhancing air quality through targeted duct system purification. Color: White.