Early Years: Respiratory Hygiene This lesson supports children to learn how easily harmful germs can spread through sneezing. Scroll down to find out more and to download the resources. Download the complete lesson Understand how proper hygiene practices, such as sneezing into a tissue or sleeve and washing hands after nose blowing, help to reduce the spread of harmful germs and keep us healthy. Respiratory infections are infections that happen in the lungs, chest, sinuses, nose and throat, for example, ...