My daughter thought I looked like Hannibal Lecter in the RZ Mask, but you and your workers will look cool and be safe at the same time. Although a full respirator may be needed for silica dust, the RZ Mask will filter out most other particulates and even has a replaceable activated carbon filter that can capture VOCs and odors. The neoprene mask fastens behind the head with Velcro and has a metal nose bridge that conforms to the individual. Available in three sizes, six solid colors, and custom designs including hunting camouflage, it can double as winter protection and won’t accumulate condensation. It sells for $29.95 with extra filters. For more information visit www.rzmask.com.