Each of Us Breathes In
18 Kilograms of Air a Day
We breathe in about 18 kilograms of air a day—enough to fill a sphere 3 meters in diameter. In fact, we breathe in about 15 times more air by weight every day than the food we eat or the water we drink.
So, for us to lead a healthy life, the quality of the air we breathe is just as important as the quality of the food we eat and the water we drink.