As a woodturner I am constantly exposed to dust in my shop. After using the Base Camp n99 mask daily in my shop and in the community, I would not hesitate to recommend it to anyone.
A heavy-duty mask that is specifically designed to protect respiratory health
N99 Active Carbon, can filter out up to 99.4% exhaust gas, pollen, dust, smoke , bacteria, chemicals, allergens and more.
6 layers of protection
Washable and reusable mask
One-way exhaust valve
Adjustable for Optimum Fit
See links below for more detailed information.
Video review From Base Camp site (YouTube)
Base camp M cross dust mask Amazon https://tinyurl.com/y5d9mla8
Base Camp web site http://www.basecampsport.com/product/index-5.html
Base camp reviews on amazon- https://www.amazon.com/product-reviews/B075C67NLV?reviewerType=all_reviews