Need a better respirator mask

I work in dusty enviroments and I am always wearing a respirator mask with filters attached to it. After long hours of wearing one of these respirator masks, I get tired of breathing through the thick filters and the filter cartridges on the outside of the mask are heavy. Is there a better respirator mask out there that will be more comfortable to wear for long periods of time?

I think what you are looking for is PAPR mask. PAPR stands for Powered Air Purifying Respirator. A battery powered air pump attached to the PAPR mask pumps air through a filter system, and delivers it straight into the face mask. This will solve your problem of working so hard to pull air through those filters with just lung power. Also, PAPR respirators have the pump, filters and batteries attached to a belt and not the mask itself. This allows for a much lighter mask that you can wear for hours.