253.7 UV light waves directly to the air, food, water, surface disinfection. Escherichia coli, Staphylococcus aureus, Green concentrated bacteria, and cholera bacteria, Bacillus anthracis, Samaniego, influenza virus ...... bactericidal effect can achieve 90% -99%. Applied to air-conditioning, central air conditioning and air filters, disinfection device, Xiaodaiwangui, shoes, hats counters, with the water.