Rumor identification:The use of hairdryers can not be disinfected. Rumor analysis: the use of hair dryer can not play a disinfection role. High temperature of 56 ℃ to maintain more than 30 minutes, may kill the new coronavirus, so the hair dryer hands and face blowing 30 seconds can not play a disinfecting effect, for the following reasons: 1, the optimal temperature of ordinary household hair dryer for 30 ℃ -40 ℃, the maximum temperature is usually about 50 ℃, may not reach 56 ℃. 2, even if the hair dryer can reach 56 ℃ or even higher temperature, the hands and face continued to blow 30 seconds, there is no disinfection. 3. When the temperature and time are met at the same time, it will cause skin damage such as skin burns, and this operation is not worth the cost. In addition, besides being sensitive to UV light and heat, lipid solvents such as ether, 75% ethanol, chlorinated disinfectants, peroxyacetic acid and chloroform can effectively inactivate the virus. For hand and face disinfection, daily use of 75% alcohol is sufficient to achieve good disinfection. Special tip:During the Newcastle pneumonia epidemic, when skin is contaminated with contaminants it should be rinsed immediately, while wiping with 0.5% iodophor or chlorinated disinfectant, alcohol for 3 minutes, and then washed with water. At the same time, home disinfection is especially important. Use chlorine disinfectant (e.g. 84 disinfectant) diluted once a day to disinfect the room; dishes can be boiled for 15 minutes or soaked in chlorine disinfectant for 30 minutes and then washed with water; clothes can be boiled for 15 minutes or soaked in chlorine disinfectant for 1 hour. In addition, open windows properly to keep the air circulating.