Compressed air at high pressure can cause frostbite?

[wils0645]

Is it possible to get frostbite from compressed air? How does this happen?

 

[mgb_phys]

The expanding air cools ( Joule-Thomson effect)
If you have a big pressure difference the cooling effect can be very large - you get ice forming even on a CO2 fire extinguisher.

 

[wils0645]

Thanks, I appreciate it. I was curious.