Dust mask, definitely. Full mask doesn't work for me, wear glasses. Hmmm, wait, I just remembered, had cataract eye surgery last year, and now 20/20. Could wear a full mask now, but don't care for them. I like a full shield over safety glasses. I would imagine you can get a mask for considerably less than $130 that will be completely adequate, I'm thinking they all have replaceable filters now too. I think my half mask ran me around $30, and had two replaceable filters. Have a bit different style now, but still two replaceable filters. My shop is quite small, so have a fan in the window to blow thru and out, but definitely wear the mask when doing anything except some hand sanding. I never coughed before I started using a mask, but did tend to cough up sawdust.
"It ain't what you're told, it's what you know." - Granny Weatherwax
Of course I'm not busy, I did it right the first time.
Call me a craftsman, artisan, or artistic, and I will accept that. Call me an artist and you will likely get a quite rude comment in return. I am not a @#$%ing artist.