Air Powder saltiness

So I've never even heard of an air powder brush before and now I know why.
First I'll explain what it is. Instead of doing a prophy, you would air powder brush someone who maybe has braces or who has extremely bad staining. What it is is a mixture of water and sodium bicarbonate and it blasts off the stain on the teeth. Yes, it sounds painful and it is painful!
Okay, so maybe not painful but just not fun. Salt gets everywhere and it bounces off the tooth and hits your tongue or lips. It just stings a little bit.
I worked with Ashley Nelson and she did a stupendous job! I felt bad because when I worked on her she had water and salt all over her face. Then she worked on me without any problems.
There is a difference between the feeling of being airpowder brushed and prophy brushed. Air powder is a lot smoother and gets stain and plaque off so much easier.