a hoover and a dust mask should do.....

set the hoover nozel close to the work peice so that when you cut saw lathe etc it sucks up the bits .....the nozel can be tapped to the bench to stop it floating about.

Remember when I did your arm board ...I did something similar ....

the dust mask will stop you inhaling  anything the hoover misses

the benifit is that this helps you keep your work bench clean and clear of debris ....

Don't get too tied up with the possible carcinogen's....there normally talking about a life times exposure ....asbestos on the other hand   can be one exposure......back in the fire service days we had to log every instance we were exposed that could be about once a month . Then you had to recognise it ..god only knows what I've been exposed to !.....all your kit then  had to go away to be cleaned .....would you belive sketchleys..wonder if they ever told the women who worked the cleaners ?.

If you know its a problem your part way to solving it ....