| in Did You Know Facts
Airplane air is significantly drier than any you might experience on earth.
![plane, fact about planes, facts about airplane, facts about aircraft](https://assets.shortpedia.com/uploads/2022/04/18/1650268764.webp?tr=w-1200,h-600,cm-pad_resize,bg-F3F3F3)
While humidity levels in the Western United States' Mojave Desert can reach up to 50%, you'll only get a fraction of that moisture aboard a plane. According to the World Health Organization, the average aircraft has a humidity level of less than 20%.
Related Facts
![conspiracy, theory, prophecy fails, Leon Festinger, backfire effect](https://assets.shortpedia.com/uploads/2022/08/19/1660892419.webp?tr=w-1200,h-600,cm-pad_resize,bg-F3F3F3)
The phrase "X-Files" refers to all of the conspiracy theory fodder that the FBI is secretly working on.
![mango, south india, portuguese, maanga, surya bai, king](https://assets.shortpedia.com/uploads/2022/10/31/1667212585.webp?tr=w-1200,h-600,cm-pad_resize,bg-F3F3F3)
A Historical Dictionary of Indian Food claims that the Portuguese were the first to use mango grafting.
![The United States](https://assets.shortpedia.com/uploads/2022/09/15/1663226737.webp?tr=w-1200,h-600,cm-pad_resize,bg-F3F3F3)
The United States is one of just eight countries in the world that does not mandate paid maternity leave.