I was checking out a 3M Power Visor in the Woodcraft catalog and was wondering if any one had any experiance with one.It is self containd and has a built in fan ,filter and rechargable battery.It looks like a pretty slick unit.For the last twelve years I have used a Wilton Square Wheel grinder to rough out my bone and ivory carvings.I have a dust collector and wear a good mask but I am always looking for some thing to make it easier.I know I will never be able to retire and I am always looking for ways to deal with the dust before it gets to me.A lot of the best knife makers seem to be dying young and ill bet a lot of you guys are thiking on the same lines.
Chuck
Chuck