FIT5 How-tos for Kids :: How to prevent and treat asthma :: Asthma :: Did you know?

If you laid out the ventilating surface of an adult lung, it would be as large as a tennis court.Air contains 21% oxygen, 78% of nitrogen, and 1% of rare gas.

During a cough, the air can reach speeds up to 67 miles/ hour (108 km/h), while during sneezing it can reach up to 100 miles/hour (160 km/h).A trained lung works twice as well as an untrained lung.