Thanks for those references.
When I wrote "dust", perhaps I meant any solid partices, including dirt, metal and concrete grindings, fiberglas insulation, sanding on metals and wood, etc.
I have used an inexpensive medical N95 for blowing the dust around in the back yard while moving leaves and it worked fine there.
Perhaps the primary interest is stinky paint but if it's just swapping cartridges to deal with the "dust" items then it seems like a good thing.
I know most about 3m products because its what I use and what I sell. so Ill use their models
The 3M 6000 Facepiece is your bog standard, industry mask. Used pretty much EVERYWHERE!. You can upgrade models and get more features like a better headstrap or silicone for more comfort.
The 2091 "Pancake" filter is the standard general purpose "Dust" filter that fits the 6000 (et al) masks. Good for oil mist and will protect from all your above "dusts" like fiberglass, sanding dust, metal etc. Welders wear them alot.
There is a few "upgrade" versions of the 2091 that add some features like nuisance OV protection, 2097 is one. For something like grinding paint (smoke) or using an aerosol spray paint can, 2097 would likely work fine.
If youre going to do something like spray paint a car, with a compressed air paint gun, where youre throwing up a lot of mists then a full on OV 6001 cartridge would be needed. You usually run a prefilter too to prevent cloging the OV. 3M does sell OV filters with built in prefilters too.
Of course as protection goes up, price goes up and there isnt a lot of sense paying for more protection than you need (plus the filters get heavier and harder to breath through as you add protection too)
The 2091 pancake is a real workhorse and is probably the most used respirator filter out there in my experience.
