1. Respiratory Protection

2. Why respiratory protection is necessary v Air contaminants/hazardous atmospheres come from a variety of sources DustsDusts Aerosol mistsAerosol mists Metal fumesMetal fumes 1a

3. Why respiratory protection is necessary v Air contaminants/hazardous atmospheres come from a variety of sources Evaporated vaporsEvaporated vapors Released gasesReleased gases Oxygen-deficient atmospheresOxygen-deficient atmospheres 1b

4. Why respiratory protection is necessary v Many operations generate air contaminants Filling bins with flourFilling bins with flour Degreasing metal partsDegreasing metal parts Spraying operationsSpraying operations WeldingWelding 1c

5. Why respiratory protection is necessary v Find out how much contaminant is in the air v Test the air to find out what the exposures are 1d

6. Why respiratory protection is necessary v If results show an overexposure, take steps to control the hazard Engineering controlsEngineering controls Administrative controlsAdministrative controls PPEPPE 1e

7. Respirator types v Atmosphere-supplying Supplied airSupplied air Self-contained breathing apparatus (SCBA)Self-contained breathing apparatus (SCBA) DemandDemand Positive pressurePositive pressure Escape-onlyEscape-only 2a

8. Respirator types v Air-purifying FilterFilter Canister or cartridgeCanister or cartridge 2b

9. Respirator types v Air-purifying Negative pressureNegative pressure Powered air-purifyingPowered air-purifying 2c

10. Fit, usage, and maintenance v Employees must pass a fit test Quantitative fitQuantitative fit Qualitative fitQualitative fit v Use the respirator as it was designed 3a

11. Fit, usage, and maintenance v Follow operating instructions v If respirators are used to enter an IDLH atmosphere: one trained, rescue-equipped employee must remain outsideone trained, rescue-equipped employee must remain outside an attendant must maintain communication contactan attendant must maintain communication contact 3b

12. Fit, usage, and maintenance v During interior structural firefighting at least 2 employees with SCBA must enter together and stay in contact with each otherat least 2 employees with SCBA must enter together and stay in contact with each other at least two people trained and equipped for rescue must remain outsideat least two people trained and equipped for rescue must remain outside 3c

13. Fit, usage, and maintenance v A dirty, inoperative respirator will not protect you 3d

14. Inspection, donning, doffing respirators v Inspect respirators before each use and during cleaning v Inspect SCBAs monthly and keep cylinders fully charged 4a

15. Inspection, donning, doffing respirators v Emergency-use respirators: inspect monthlyinspect monthly tags must show inspection resultstags must show inspection results v Follow manufacturer’s instructions for donning/doffing equipment 4b

16. Inspection, donning, doffing respirators v Perform seal checks after donning respirator Positive pressure testPositive pressure test Negative pressure testNegative pressure test Review Appendix B-1Review Appendix B-1 v Never enter a work area without a good respirator seal 4c

17. Cleaning, maintenance, and storage v Respirators must be cleaned to remove contaminants/prevent irritation v Shared respirators must be cleaned before each use 5a

18. Cleaning, maintenance, and storage v Emergency-use respirators must be cleaned after each use v Review Appendix B-2 for cleaning/disinfecting instructions v Only use manufacturer’s replacement parts 5b

19. Cleaning, maintenance, and storage v Damage v Contamination v Dust v Sunlight v Temperature extremes v Excessive moisture v Chemicals v Deformation of the facepiece Storage helps prevent respirators from: 5c

20. Responding to emergencies v If the respirator malfunctions, immediately leave the work area v Activate auxiliary self-contained air supply 6a

21. Responding to emergencies v If a sudden hazardous release occurs, don emergency escape- only respirators as you exit the area 6b

22. Responding to emergencies v Some employees must be trained and authorized to respond to emergency situations Confined space rescueConfined space rescue Release of hazardous chemicalsRelease of hazardous chemicals Interior structure firefightingInterior structure firefighting 6c

23. Medical signs and symptoms v Know how to recognize and report medical signs and symptoms that may limit or prevent the effective use of respirators v Shortness of breath v Dizziness 7a

24. Medical signs and symptoms v Coughing v Wheezing v Chest pain 7b

25. Medical signs and symptoms v Chest injuries v Lung diseases v Cardiovascular conditions 7c

26. Medical signs and symptoms v Heart conditions v Review Appendix C: OSHA Respirator Medical Evaluation Questionnaire 7d

27. Regulations v Review the main paragraphs (a through o) of 29 CFR 1910.134 8a