Is This a Proper Way to Treat Mites?

For the record, none of my snakes or reptiles have mites. Haha. But I came across this video and was just curious if this was a proper way to treat them. Just for reference if I ever came across the issue. I'm taking it you don't spray the PAM directly on the snake?

http://www.youtube.com/watch?v=lXBMgNXzgb0

Theres many ways of doing it and his way is perfectly fine. Just always remove water bowls when spraying in the tubs/cages.

I personally take snake and water out. Spray tub, wait 1 min and return the snake. 30 mins later i return the bowls with fresh water. I only do this every 3 months for prevention.