Appendix A – Assigned (APF) Protection Factors for Respiratorsa

Operating Mode Assigned Protection Factors I. Air purifying respirators (Particulate only) b c Filtering faceplate disposable . . . . . . . . . . d Facepiece, half . . . . . . . . . . . . . . . . . . . . . . e Facepiece, full . . . . . . . . . . . . . . . . . . . . . . . Facepiece, . . . . . . . . . . . . . . . . . . . . . . . . . . Facepiece, full . . . . . . . . . . . . . . . . . . . . . . . Helmet/hood . . . . . . . . . . . . . . . . . . . . . . . . Facepiece, loosefitting . . . . . . . . . . . . . . . . Negative Pressure . . . . . . . . . . . . . Negative Pressure . . . . . . . . . . . . . Negative Pressure . . . . . . . . . . . . . Powered air-purifying respirators Powered air-purifying respirators Powered air-purifying respirators Powered air-purifying respirators ( ) d II. Atmosphere suppling respirators (Particulate, gases, and vapors ) f 1: Air-line Respirator: Facepiece, half . . . . . . . . . . . . . . . . . . . . . . Facepiece, half . . . . . . . . . . . . . . . . . . . . . . Facepiece, half . . . . . . . . . . . . . . . . . . . . . . Facepiece, full . . . . . . . . . . . . . . . . . . . . . . Facepiece, full . . . . . . . . . . . . . . . . . . . . . . Facepiece, full . . . . . . . . . . . . . . . . . . . . . . Helmet/hood . . . . . . . . . . . . . . . . . . . . . . . . Facepiece, loose-fitting . . . . . . . . . . . . . . . Suit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2: Self-contained breathing apparatus (SCBA): Facepiece, full . . . . . . . . . . . . . . . . . . . . . Facepiece, full . . . . . . . . . . . . . . . . . . . . . Facepiece, full . . . . . . . . . . . . . . . . . . . . . Facepiece, full . . . . . . . . . . . . . . . . . . . . . Demand . . . . . . . . . . . . . . . . . . . . Continuous Flow . . . . . . . . . . . . . Pressure Demand . . . . . . . . . . . . . Demand . . . . . . . . . . . . . . . . . . . . Continuous Flow . . . . . . . . . . . . . Pressure Demand . . . . . . . . . . . . . Continuous Flow . . . . . . . . . . . . . Continuous Flow . . . . . . . . . . . . . Continuous Flow . . . . . . . . . . . . . Demand . . . . . . . . . . . . . . . . . . . . Pressure Demand . . . . . . . . . . . . . Demand, Recirculating . . . . . . . . . Positive Pressure Recirculating . . ( ) g h 10,000 i h 10,000 i III. Combination Respirators: Any combination of air-purifying and atmosphere-supplying respirators Assigned protection factor for type and mode of operations as listed above FOOTNOTES a. These assigned protection factors apply only in respiratory protection program that meets the requirements of 105 CMR 120.293: Appendix A. They are applicable only to airborne radiological hazards and may not be appropriate to circumstances when chemical or other respiratory hazards exist instead of, or in addition to, radioactive hazards. Selection and use of respirators for such circumstances must also comply with Department of Labor regulations. Radioactive contaminants for which the concentration values in 105 CMR 120.296: Appendix B, Table 1, column 3 are based on internal dose due to inhalation may, in addition, present external exposure hazards at higher concentrations. Under these circumstances, limitations on occupancy may have to be governed by external dose limits. b. Air purifying respirators with APF <100 must be equipped with particulate filters that are at least 95% efficient. Air purifying respirators with APF = 100 must be equipped with particulate filters that are at least 99% efficient. Air purifying respirators with APF >100 must be equipped with particulate filters that area t least 99.97% efficient. c. The licensee may apply to the Agency for the use of an APF greater than one for sorbent cartridges as protection against airborne radioactive gases and vapors (e.g., radioiodine).