How long is apiece of string/ or dont wak under ladders! Any dust or
fumes in large regular amounts will be bad for you.
Find a way to not inhale it.
titanium is a reactive/ getter metal, ie its very difficult to
remove its oxide layer. so even the smallest particles will be
covered in its oxide.
this non reactive coating is one of the reasons its used in medical
plates and pins in orthopedic repair work.
theres a certin particle size of any dust thats particularly
dangerous. its the same size as the internal diaof the smallest air
ducts in your lungs. this size doesnt get breathed out it sticks in
the tubules, smaller particles get breathed out, larger dont get that
also it will depend on the general ventilation of your workshop.
I use a proper industrial vac system for all my polishing, linishing
and finishing setups. Aim for at least 600 cft a min air flow.