Title: Farm Dust Protection
Product review: I have used this product (3M 8511)while cleaning out farm grain storage bins for several years. The exhaust valve helps reduce moisture buildup that occurs in extreme hot and cold weather. This is important for those wearing glasses. The straps seem to be better than most of the other brands I've tried. The filter medium works well for non toxic grain dust.My local supplier now only stocks a competing "generic" brand. We perfer 3M 8511, so I ordered online.
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