Joe, while it's never wise to inhale much of the dusts, smoke and chemicals us woodworkers encounter, the level of protection you may require depends on your own physical needs and your level of exposure. Some of us, wisely or not, have enjoyed our hobby without a care for dust masks. Others use simple throw away paper masks. While, a few need and use a full face respirator.
I can't speak to the particular mask you cited because I'm one of those who very occasionally uses the throw away type.
Inventory your exposure risks and your physical/medical needs and decide accordingly.
But, remember to always enjoy your time in the shop. If you're always worried about your health, that diminishes an otherwise happy experience.
'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton
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