One pair of Replaceable Filters for use with ActivArmor Custom Design Facemasks. A patent-pending filter system, with material that achieves a 98.9% – 99.9% Bacterial Filtration Efficiency (BFE) test score.
Filters should be replaced after possible exposure to infectious agents using institutional replacement protocols. According to FDA Guidance, to disinfect and re-use filters, simply place them in a bag away from human contact for 5 days before re-use.