Whatever you do.....DO NOT skimp on PPE (Personal Protection Equipment)! A good quality full or half face respirator is a MUST!!
Here's the one I use:
https://www.amazon.com/3M-7503-Respi...s%2C224&sr=8-8
The biggest thing with this mask is that the facepiece is made of a soft silicone, that seals easily and well. Many of the less expensive masks use a harder plastic, that doesn't seal well.
Filters: These are the baseline filters....
https://www.amazon.com/3M-5005113107...gateway&sr=8-4
Just look for pink colored filters..... that additional numbers/protections are above and beyond baseline particle protection. Just make sure that the filters are rated for whatever you're working with. An example is if/when you get into etching damascus. I am astounded at how many MORONS work with various acids, most of which are VERY dangerous, either without a mask, or with the wrong mask! PAY ATTENTION AND PROTECT YOURSELF!