NIOSH CERTIFIED N95 MASK: [Approval number: TC-84A-9241] - Certified for protection at least 95% filtration efficiency. The mask offers thorough protection from particulate materials down to 0.3 microns meeting the requirements of 42 CFR part 84 (Approval of Respiratory Protective Devices). Disposable respiratory mask with HEPA (high efficiency particulate air) filter.