People need 10,000 litres of clean air a day. The recommended daily fluid intake is 2 litres for women and 2.5 litres for men. This quantity includes drinking water, drinks of all kinds and the moisture available from the food we eat. We automatically demand clean surfaces and clean water, but what about the air...
No one would knowingly drink unclean water on a regular basis if they had any choice but do we treat clean air in the same way?
