Spiritually speaking, the “air” or worldly atmosphere that most people breathe in today is the “spirit of the world,” which has been judged as unclean by Jehovah. (1 Cor. 2:12; Rev. 16:17-21)
... ‘There is this common inclination of mind that so permeates the whole of society that it causes people to think, to speak and to take certain attitudes and viewpoints, and to follow a rather well-defined pattern of conduct that runs counter to the influence of God’s spirit and the instruction in his Word, the Bible.