I'm not endorsing the product even though a knifemaker buddy of mine loves his, but this is the least expensive powered filtering facepiece with replaceable dust cartridges out there.
My buddy got to the point where he couldn't stand grinding micarta and gave this a try. His comment, "That's the first time in 20 years I don't smell that damned old micarta".
http://www.rockler.com/product.cfm?page=10877&filter=respirator#orderForm
My buddy got to the point where he couldn't stand grinding micarta and gave this a try. His comment, "That's the first time in 20 years I don't smell that damned old micarta".
http://www.rockler.com/product.cfm?page=10877&filter=respirator#orderForm