Every day we pass through the lungs up to 40 kilograms of air. We can do without it for only a few minutes, but we rarely think about what air is made of and where it came from. What is "clean air" and can you breathe with your skin? Why can't you dry clothes in the apartment and use thermal water on the plane? How to calm down with breathing? Ask the professionals! Natalya Golubeva works with air every day, she is a ventilation design engineer. In her book, she explains where the atmosphere on Earth came from and what it consists of, how the composition of the air affects our well-being, whether it is possible to control the weather and why carbon dioxide is needed. This is a fascinating encyclopedia book full of amazing facts about the air and those who breathe it. After reading it, you will not only broaden your horizons, but also be able to improve the quality of life.