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Respirator Selection based on OSHA APFs Scott Shinn, CIH, Technical Service Specialist, 3M Company.

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Presentation on theme: "Respirator Selection based on OSHA APFs Scott Shinn, CIH, Technical Service Specialist, 3M Company."— Presentation transcript:

1 Respirator Selection based on OSHA APFs Scott Shinn, CIH, Technical Service Specialist, 3M Company

2 AGENDA Types of Respiratory Protection Definitions Respirator Selection Process Examples of Acceptable Respiratory Protection

3 Respiratory Protection Air Purifying Respirator –Negative Pressure Respirator

4 Respiratory Protection Air Purifying Respirator –Powered Air Purifying Respirator (PAPR)

5 Respiratory Protection Atmosphere Supplying Respirator

6 Respiratory Protection Self-Contained Breathing Apparatus (SCBA)

7 Definitions Assigned Protection Factor (APF) –the workplace level of respiratory protection that a respirator or class of respirators is expected to provide to employees when the employer implements a continuing, effective respiratory protection program.

8 Definitions Maximum Use Concentration (MUC) –the maximum atmospheric concentration of a hazardous substance from which an employee can be expected to be protected when wearing a respirator, and is determined by the APF of the respirator and the exposure limit of the hazardous substance. (APF X OEL) OEL = Occupational Exposure Limit

9 Definitions Immediately Dangerous to Life or Health (IDLH) –an atmosphere that poses an immediate threat to life, would cause irreversible adverse health effects, or would impair an individual's ability to escape from a dangerous atmosphere.

10 Respiratory Protection Program Per 29 CFR Written Respiratory Protection Program must include… –Procedures for selecting respirators –Medical evaluation –Fit testing –Use of respirators –Maintenance and care of respirators –Breathing air quality and use –Training –Program evaluation –Recordkeeping

11 Respirator Selection Process Exposure Assessment –Typically determined through air monitoring Determine APF Required –Concentration in Air ÷ OEL (C/OEL) APF Table Other Considerations

12 Assigned Protection Factors

13 Assigned Protection Factors for the Revised Respiratory Protection Standard, OSHA Original Illustrations created by Attiliis & Associates

14 Assigned Protection Factors APF=1000 if manufacture has documentation Assigned Protection Factors for the Revised Respiratory Protection Standard, OSHA Original Illustrations created by Attiliis & Associates

15 Assigned Protection Factors Also includes hooded supplied air respirator APF=1000 if manufacturer has documentation Assigned Protection Factors for the Revised Respiratory Protection Standard, OSHA Original Illustrations created by Attiliis & Associates

16 Assigned Protection Factors Assigned Protection Factors for the Revised Respiratory Protection Standard, OSHA Original Illustrations created by Attiliis & Associates

17 Example 1: Styrene OEL = 50 ppm (1) Manufacturer must demonstrate protection factor of 1000 ExposureRespiratory Protection 500 ppmHalf Facepiece with OV Cartridge Any other organic vapor or supplied air respirator with an APF 10 > 500 ppm to 1250 ppmPAPR with OV Cartridge and Hood/Helmet, or Loose Fitting Facepiece Continuous flow supplied-air system with Hood/Helmet, or Loose Fitting Facepiece Any other organic vapor or supplied air respirator with an APF 25 > 1250 ppm to 2500 ppm Full Facepiece with OV Cartridge Any other organic vapor or supplied air respirator with an APF 50 > 2500 ppm to < 5000 ppm PAPR with OV Cartridge and Full Facepiece or Hood/Helmet (1) Continuous flow supplied-air system with Full Facepiece or Hood/Helmet (1) 5000 ppm (IDLH)SCBA Voluntary TWA-OEL for Styrene Industry

18 Example 2: Styrene OEL = 20 ppm (1) Manufacturer must demonstrate protection factor of 1000 ExposureRespiratory Protection 200 ppmHalf Facepiece with OV Cartridge Any other organic vapor or supplied air respirator with an APF 10 > 200 ppm to 500 ppmPAPR with OV Cartridge and Hood/Helmet, or Loose Fitting Facepiece Continuous flow supplied-air system with Hood/Helmet, or Loose Fitting Facepiece Any other organic vapor or supplied air respirator with an APF 25 > 500 ppm to 1000 ppmFull Facepiece with OV Cartridge Any other organic vapor or supplied air respirator with an APF 50 > 1000 ppm to < 5000 ppm PAPR with OV Cartridge and Full Facepiece or Hood/Helmet (1) Continuous flow supplied-air system with Full Facepiece or Hood/Helmet (1) 5000 ppm (IDLH)SCBA ACGIH TLV-TWA for Styrene

19 Thank You! Scott Shinn, CIH, Technical Service Specialist, 3M Company


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