N95 is better than nothing, but insufficient for long term exposure. Depends on what you are doing, too. Cutting with a spindle is probably okay. Fine sanding ebony or coco on a lathe definitely not okay.
Good to know! I also heard that a lot of guys have an HVAC thing to clean out the air - I forget what it's called.
My only attempt at cue-building was to buy a "finish taper" bocote butt blank and have someone put a pin in it that matches a masse shaft I bought - I sanded down the butt at the joint to give it a bit of taper towards the shaft, since the butt is oversized, but I sanded too much, and now the shaft overhangs the butt where the two connect.
I used Minwax wipe-off polyurethane to finish it, because that looked quicker and easier than trying to figure out natural oils and/or shellac *ahem*.
I waited a week after applying the second coat of Minwax, and it still wasn't dry, so I sanded it until it dried. It's now slightly tacky, but actually looks and feels quite nice.
I did not use a respirator or a natural finish. ;P
I've spent about the same amount trying to put together a cheap masse cue as I would have paid to just buy a masse cue.
So that's my current reality, but my quest for the perfect playing cue is underway.
I'm about to head out and try using my purpleheart break cue with the weight bolt removed with my kielwood OB Phoenix III 11.8mm shaft. My playing cue's pin doesn't align with this shaft as well as the break cue does, so maybe that's a sign? lol - we'll see. I'm hoping the break cue is forward-balanced, since I think the kielwood shaft is light.
Anyway, I hope my pool newbie's perspective on cue-building is funny and/or informative. When I bought that "final turn" cue blank to try to make a masse cue out of, I thought "It doesn't look that hard to just put a finish on it, have somebody install a pin, and screw a butt-cap into it," and comedy ensued.
Learning how to build perfect cues looks just as difficult as learning how to play perfect pool.