Air conditioning ultraviolet sterilization if people are not in the room, the human body does not generally have no effect; if frequent use of air conditioning for ultraviolet sterilization, and people can often be exposed to, then there may be a certain impact on people. Ultraviolet light on the human body is a certain damage, if the skin after ultraviolet radiation, there may be skin flaking, rashes, redness and swelling and other phenomena, if frequent ultraviolet radiation, and may even lead to skin cancer. Ultraviolet light for the eyes also has a certain damage, the eyes after long-term exposure to ultraviolet radiation and excessive irradiation, it is easy to form inflammation, such as conjunctivitis, keratitis. Therefore, the air conditioning ultraviolet sterilization try to avoid entering the room in addition to sterilization, generally after the end of sterilization, open the window to ventilate before entering, and usually go out to try to avoid long-term exposure to ultraviolet light.