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Self Contained Breathing Apparatus

Self Contained Breathing Apparatus. What are the four hazardous respiratory environments?. 1. Heat 2. Smoke 3. Toxic gases (poisonous & superheated) 4. Oxygen deficiency <19.5%. Smoke. Byproduct of incomplete combustion. Toxic gases include :. Carbon Monoxide Hydrogen Sulfide

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Self Contained Breathing Apparatus

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  1. Self Contained Breathing Apparatus

  2. What are the four hazardous respiratory environments? • 1. Heat • 2. Smoke • 3. Toxic gases (poisonous & superheated) • 4. Oxygen deficiency <19.5%

  3. Smoke • Byproduct of incomplete combustion

  4. Toxic gases include: • Carbon Monoxide • Hydrogen Sulfide • Phosgene gases

  5. Air consists of: • 78% nitrogen • 21% oxygen • 1% other

  6. When do we use SCBA? • Oxygen deficient atmospheres & confined spaces. • Gas incidents. • Chemical incidents. • Salvage and clean-up operations. • True unknowns. • Whenever in doubt.

  7. S.C.B.A. can’t protect you from: • Gases absorbed through skin • Intense heat • Empty air supply • Radiation

  8. How much time do you have with the SCBA? • It’s never enough, but you have about 30 minutes if: • You’re in good cardiovascular health. • Not stressed out. • Good fit on mask

  9. Factors that affect fit of mask • Weight gain/loss • Facial hair • Shape of face • Good seal

  10. Safety Check • Tank pressure • Low air alarm • High pressure line • Regulator • Mainline valve • Emergency by-pass valve

  11. Safety Check cont. • Low pressure hose • Damaged lens • Face piece straps • Face piece seal

  12. THANK YOU.

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