Drew
Hi,
Drew, North System does not mean anything to me. I had a beard once, about 50 years ago so no problem there.
On another site I saw the Rockler mask highly touted with a slew of 5 star responses. URL below. It is a half mask. It has a blower. Other than that and a lot of people liking it I have not found any data. This is also sold by other places.
The appeal to me:
I am little---114 pounds. I do not like weight on my head. I have a $40 AO, two canister face mask that I do not wear.
In masks the raised humidity makes my nose run so I frequently have to stop work and remove mask to blow my nose. This can frequently be a "do it now or you are going to be sorry" situation. This is a MAJOR problem. People say no increase in humidity with the Rockler.
I wear prescription safety glasses. Most mask situations cause radical steaming. In the past drug stores and similar carried little, no-fog lens cleaning sticks (like a lip-stick only with a soft wick in place of the colored goo). I have not been able to find these. Steaming also causes a stop in working, frequently with little warning. People say no steaming with the Rockler.
I have a small head. You should have seen the Navy and Marine Corps trying to find hats (covers) for me. The same thing is probably going to apply to any head gear. Since I have a small head, I also have a small face. This is not a problem with the 95N felt (with breather) masks. However, it could be a problem with the Trend or anything similar. It could be a problem with the Rockler unit but it does not look like it in pictures.
http://lumberjocks.com/topics/4264 for "Rockler Power Air Respirator."
I don't mind wearing foam ear-plugs. I don't mind wearing safety glasses. At the lathe my DC sucks up more stuff than any other unit I have seen or heard of---however, it does not get it all. The DC also works well at my sanding station, router table, drill press, thickness planer, hand belt and orbital sanders, etc.
I am seeking something I can wear that really gets rid of the stuff way down to the particles that get into the alveoli of the lungs causing major problems. I don't think passing 3 microns fits that bill.
Responses really appreciated.
Thanks and Enjoy,
Jim