For most of my career, I didn’t own a dust extractor and worked in what can only be described as a dust storm, and it has taken a toll on my lungs. No one I worked with ever told me (I’ll assume they never knew themselves) that wood dust has detrimental health effects.
For the longest time, even OSHA classified wood dust as a nuisance dust (not anymore). And the OSHA website still says, “The extent of these hazards and the associated wood types have not been clearly established.”