... The quartz glass tubes for the UV sterilizing lamps produced in our company, their transmissivity at 253.7nm is over 70 ... the mercury lamps transmit 185nm short wave ultraviolet rays, which result in ozone, the ozone in the air even with a low density (for ... disinfectors used for air, food, water disinfection and apparatus disinfection in families, kitchens, food industry, hospitals and so on. Quartz ...