The germicidal lamp is a low-pressure mercury lamp. Low-pressure mercury lamp use low mercury vapor pressure (< 10-2pa) to be excited and emit ultraviolet light. There are mainly two spectral lines: one is 253.7nm wavelength; The other is 185nm, both of which are invisible to the eyes.
Ultraviolet lamp wide- range in application, hospital, school, kindergarden , cinema, bus ,office and home, etc., it can purify air, eliminate mildew, still can produce a certain amount of negative oxygen ion in addition, the ultraviolet disinfection rooms, air particularly pure and fresh and in public, by ultraviolet disinfection, can avoid some germs spread by air or by surface.
Because ultraviolet radiation can penetrate cells to make them die, so the use of ultraviolet disinfection should be careful not to directly illuminate the human skin, especially the eyes, ultraviolet sterilization lamp when lit do not look directly at the tube, because the short wave ultraviolet radiation does not pass through ordinary glass, wear glasses to avoid eye damage. If not narrow-minded injury, the general situation is not serious, just like being burned by the sun, serious eye drops or human milk, help recovery. In person's situation, do not use ozone lamp tube, ozone concentration can be toxic.