BFE (Bacterial Filtration Efficiency) > 99%* PFE (Particle Filtration Efficiency) > 99%* hypoallergenic and latex-free Nexcare? Earloop Mask is ideal for home health care use. Its 3 layer construction filters up to 99% of the wearer?s exhaled bacteria. This lightweight, breathable earloop mask is easy to put on. For general infection protection Reduce bacterial exposure Reduce the chance of exposure to blood andbody fluids