Question

What is humidity? If the humidity is 95% does that mean 95% of the air is water vapor?

Answer 1

 humanity is a quantity representing the amount of water vapor in the atmosphere or a gas.

And yes that would be correct

Hope this helps c;

Answer 2

Humidity is the amount of water in the atmosphere/a gas based on capability.

If the humidity is 95%, that means it contains 95% of the water it is capable of holding.