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Respiratory Protection

Respiratory Protection. Why respiratory protection is necessary. Air contaminants/hazardous atmospheres come from a variety of sources Dusts Aerosol mists Metal fumes. 1a. Why respiratory protection is necessary. Air contaminants/hazardous atmospheres come from a variety of sources

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Respiratory Protection

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  1. Respiratory Protection

  2. Why respiratory protection is necessary • Air contaminants/hazardous atmospheres come from a variety of sources • Dusts • Aerosol mists • Metal fumes 1a

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

  4. Why respiratory protection is necessary • Many operations generate air contaminants • Filling bins with flour • Degreasing metal parts • Spraying operations • Welding 1c

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

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

  7. Respirator types • Atmosphere-supplying • Supplied air • Self-contained breathing apparatus (SCBA) • Demand • Positive pressure • Escape-only 2a

  8. Respirator types • Air-purifying • Filter • Canister or cartridge 2b

  9. Respirator types • Air-purifying • Negative pressure • Powered air-purifying 2c

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

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

  12. Fit, usage, and maintenance • During interior structural firefighting • at 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 outside 3c

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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