So an appropriate ventilation strategy for any workspace is determined by three main factors in my NON professional opinion: A)the EXACT materials that are the source of the dust/particulate matter B) the amount of time you spend exposed to said dust/matter and C)practical constraints such as budget, space, effort, etc. I would investigate each aspect in this sequence.
I would caution you to not assume that natural materials are either inherntly safer or all the same in terms of their needs to be made more safe. In fact safety protocols vary wildly between different species of wood even. Think about how some plants or mushrooms can be nutritious and others deadly.
So the first part. The second, length of exposure, is important too though because while I am working with all the same stuff as always, I probably need to upgrade my air filtration because the amount of time i spend breathing in my workspace has increased.
I currently use a shopvac with with a homemade cyclone separator for dust collection and frequently wear a respirator mask with whatever filter corresponds to the noxious fumes and fine particles du jour. I do not have an air filtration system however I do have very large windows that I can leave open most of the time pretty much year round so beaucoup fresh air. Still, I should probably add some better air filtration to achieve the general air quality/safety standard of having all the air in my space replaced twice per hour all the time I am in it regardless of whether or not my windows are open at the time. So....there is always work to be done on ventilation.
As a medical professional I can give my professional opinion that breathing is super important and we should consistently take all measures available to us to protect our ability to do so for a long time. I stress consistency because this is the place where i find it is easiest to undermine ourselves.
Hope this was helpful and never underestimate the power an open window.
