When Lu Xiweier was sitting at his desk in the purchasing department on the third floor of the administrative building of Renxin Hospital, as soon as his fingertips touched the keyboard, a temperature prompt in the lower right corner of the screen popped up - 26°C, humidity 52%. This is a small plug-in that she specially set up on her computer, not because she is squeamish, but because of her procurement work in the psychiatric department.