What are you guys using while grinding metal and handle material?

I am completely out of filters for my respirator and the N95 is not enough. I am switching to Terotuf simply because it is a cleaner grind with much lower toxicity than G-10 or micarta, redoing my vacuum system for a tighter fit to increase suction, sourcing out blanks to be water jet cut to cut down on grinding etc. Not sure what else I can do to reduce the airborne particulate count Picked up an order for 200 knives so the metal will be flying for quite some time.

Hunt hard, kill clean, waste nothing and offer no apologies.

"In rifle work, group size is of some interest...but it is well to remember that a rifleman does not shoot groups, he shoots shots." Jeff Cooper