On numerous occasions when I have demonstrated at various venues I talk about stopping the lathe regularly to remove the shaving/dust from the inside. At a demo I will stop the lathe and hook out the small amount of shavings with my fingers or a bent spoon. Nearly every time I do this some one says with a wise tone " you wanna get an air hose in there, save you loads of time" or words to the effect of.
I never use an air hose to blow down the dust from my work surfaces or to blow out dust/shavings from the inside of a form not since I went to a Health and safety workshop free of charge by the HSE here in the UK. Basically an air hose for this sort of process is shunned upon as it blows all of the settled dust into the air.
The best method to adopt is the use of a vacumm cleaner. A simple attachment can be mase to fit into the end of the hose to go into any hollow form.
Any way I found this small video on the HSE web site and thought I would post.