ScienceWhat’s in the air we breathe?To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience02/06/2021February 6, 2021The air we breathe contains vital respiratory gases and a lot more besides. The main components are nitrogen, oxygen, argon and carbon dioxide. But it also contains particulate matter that can harm us. https://p.dw.com/p/3os6bAdvertisement