There are these two young fish swimming along and they happen to meet an older fish swimming the other way, who nods at them and says, "Morning, boys. How’s the water?" And the two young fish swim on for a bit, and then eventually one of them looks over at the other and goes, "What the hell is water?"
There are lots of effects you cannot explain without air. Even if you haven't been to school, you can observe wind, use a hairdryer, blow up balloons, fly a drone etc.
And "air" as a word dates back to both Latin and Greek "aer", probably from proto-Indo-European "awer" so it's pretty much been the same word in European since civilization was a thing.
You are moments away from either being slaughtered by space clowns or whipped into the air by bondage bird men. Best case, some tall motherfuckers may just toss you into space.