Sun exposure does not generally kill neocoronaviruses. Neocoronaviruses are sensitive to ultraviolet light, and ultraviolet light can kill neocoronaviruses. However, ultraviolet radiation from the sun is generally weak, with insufficient concentration and intensity, and prolonged exposure to the sun can easily irritate the eyes and skin, leading to cataracts or skin burns, etc. Therefore, it is not recommended to kill the new coronavirus by sun exposure. If you want to kill the new coronavirus, you can use ultraviolet light to disinfect for about 30 to 60 minutes, which is able to kill the new coronavirus. You can also use chlorine disinfectant spraying and soaking to disinfect, or use high temperature steaming and 75% alcohol wiping, all of these methods can effectively kill the new coronavirus.