'Air' in the Bible

So repent [change your inner self—your old way of thinking, regret past sins] and return [to God—seek His purpose for your life], so that your sins may be wiped away [blotted out, completely erased], so that times of refreshing may come from the presence of the Lord [restoring you like a cool wind on a hot day];

and it contained all kinds of four-footed animals and crawling creatures of the earth and birds of the air.

and looking closely at it, I saw all kinds of the four-footed animals of the earth and the wild beasts and the crawling creatures and the birds of the air [both clean and unclean according to the Law],

And as they were shouting and throwing off their coats [getting ready to stone Paul] and tossing dust into the air [expressing their anger],