1, indoor and outdoor environment should be cleaned with disinfectant (the ratio of 84 disinfectant to 1 is:100) every day to keep it clean. The indoor air is fresh, and it is ventilated every half day in winter, each time 10- 15 minutes. Facilities to prevent mosquitoes, flies, rats, dragonflies and other vector insects should be installed in summer. Garbage should be stored in special containers.

2. Tableware used by children should be disinfected during meals: tableware and cups should be disinfected in the disinfection cabinet every day, and towels should be soaked in 1:200 disinfectant every day. Disinfect books and teaching AIDS every Monday.

3. Toilets should be used exclusively by children, and regularly scrubbed and disinfected with acid to keep no peculiar smell.

4. The activity room, bedroom, bathroom and other auxiliary classrooms are disinfected with ultraviolet light every day (the time is not less than 40 minutes), and the air is disinfected with disinfectant.

5. In the park with automatic drinking fountains, the logistics department is responsible for cleaning and disinfecting the drinking fountains once a month, and recording the disinfection records in detail.