An important part of the air purification system, a uv bulb destroys germs and bacteria. Uv reduces the growth of odour-causing microbes on the surface of the air purifier filter. Microscopic airborne organisms get trapped in air filters, which could multiply if left untreated. When bacteria/viruses are exposed to wavelengths of uv light, they become incapable of reproducing. Indicator light on the air purifier glows red when it#s time to replace the bulb. Compatible with trusens z2000 air purifier
