Staff members carry a drone in Qingdao, East China's Shandong province, Feb 5, 2020. [Photo/Xinhua] 

In order to prevent and control the novel coronavirus-related pneumonia and safeguard passengers' health, high-tech products such as drones and robots have been deployed. In Qingdao city, drones are being used for disinfection. A drone can carry about 10 kilograms of disinfectant, with a spraying area of 5,000 square meters each time.