Quite right! Space most certainly is not Air-Tite... Air-Tites are Air-Tite, but they are not air tight. "Air" as we humans casually call it is a blend of gases and these gases are not unique to the Earth but are present throughout the universe. It's all one big pot of soup, it's all out there in the soup. Will your Air-Tite Holders keep the soup off your coins, I think not.
On the contrary, I did. Bumps are worn off due to friction, friction causes heat. I said the same thing you are just used different words