Sonic welded earloops prevent facial irritation. Mask is sonically welded for durable construction. Precepts fluid resistant masks provide the highest level of protection against splash from bodily fluids.These masks pass the ASTM F 1862 blood splash test at the highest level of 160 mm Hg. The masks offer excellent protection against bacteria, with bacterial filtration efficiencies exceeding 99%. Masks are available with or without anti-fog, non-glare extended shields. Fluid resistant masks come in a variety of prints, including blue, blue diamond, or Precepts exclusive KittyKare print.