Compressing air creates heat, decompressing it creates cool. Blowing yourself with compressed air really IS cooler, altho it is also dangerous.
Cooled air can't hold as much moisture (humidity) as warmer air, and so the moisture condenses out of the air in the form of droplets.
People using compressed air to operate tools, or for painting, have an inline filter to remove the moisture before it gets to the tool or painthead.
As far as your tires are concerned, there isn't enough moisture involved to create a problem. There isn't even enough to create a puddle.
Kirk B.
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