PPE Flashcards

1
Q

What are the four levels of PPE, and what does each provide protection against?

A

Level A: Full encapsulation with SCBA. Protects against vapors, gases, mists, and particles. Used in IDLH atmospheres.
Level B: Splash protection with SCBA. Protects against chemical splashes and vapors but not vapors on the skin.
Level C: APR/PAPR with skin protection. Used when contaminants are present, but atmospheric oxygen is sufficient (≥ 19.5%).
Level D: Standard work uniform. Provides no respiratory or skin protection. Used for non-hazardous environments.

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2
Q

What is the primary purpose of Level A PPE?

A

To provide the highest level of respiratory, skin, and eye protection in IDLH atmospheres with unknown hazards.

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3
Q

When should Level B PPE be used instead of Level A?

A

When the primary concern is respiratory protection from vapors, but skin exposure is not a significant threat.

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4
Q

What respiratory protection is required for Level C PPE?

A

Air-Purifying Respirator (APR) or Powered Air-Purifying Respirator (PAPR).

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5
Q

What are the three main suit types mentioned, and when are they used?

A

HPS (High-Performance Suits): For general chemical protection.
VPS (Vapor-Protective Suits): For environments with toxic vapors.
VPS Flash: For flash fire protection in addition to vapor hazards.

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6
Q

What is ‘breakthrough time,’ and why is it important?

A

The time it takes for a hazardous substance to permeate through the suit material. It is critical for determining how long PPE can be safely used in a specific environment.

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7
Q

What does SCBA stand for, and when is it required?

A

Self-Contained Breathing Apparatus. Required in IDLH atmospheres, oxygen-deficient environments, and unknown hazards.

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8
Q

What is the minimum oxygen level required for APRs or PAPRs to be used?

A

19.5%.

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9
Q

What are the key elements of the Level A Entry Checklist?

A

Inspection of the suit for defects.
Ensuring proper sealing of gloves, boots, and zippers.
Confirming SCBA functionality and air levels.
Checking suit compatibility with the hazard.

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10
Q

What are the attendant’s responsibilities during PPE donning and doffing?

A

Ensuring the responder dons PPE correctly.
Monitoring for suit breaches or malfunctions.
Assisting in decontamination and safe removal of PPE to avoid contamination.

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11
Q

What does the acronym IDLH stand for, and how does it relate to PPE selection?

A

Immediately Dangerous to Life or Health. PPE selection must ensure complete protection in IDLH environments, typically requiring Level A or B PPE.

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12
Q

How do you test for suit integrity before donning Level A PPE?

A

Conduct a pressure test or visual inspection to ensure there are no leaks or defects in the material.

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13
Q

What type of gloves should be used with Level A PPE?

A

Chemically resistant gloves that are compatible with the specific hazard.

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14
Q

What are the key components of a properly selected PPE ensemble?

A

Respiratory protection (SCBA, APR, or PAPR).
Dermal protection (Level A, B, or C suit).
Compatible gloves and boots.

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15
Q

What are the temperature limitations for SCBA operation?

A

SCBA must function within the range specified by the manufacturer, typically -25°F to 120°F, but always check the specific SCBA model.

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16
Q

What are the hazards of improperly doffing contaminated PPE?

A

Cross-contamination and exposure to hazardous substances that may have adhered to the PPE.

17
Q

What materials are commonly used for chemical suits to provide vapor protection?

A

Butyl rubber, Tychem®, and Viton®.

18
Q

What should be done if a suit breach occurs during an incident?

A

Exit the hot zone immediately and undergo decontamination to prevent exposure to the hazardous substance.

19
Q

How is the compatibility of PPE with a specific hazard determined?

A

By referencing compatibility charts and consulting the manufacturer’s guidelines on chemical resistance and breakthrough times.

20
Q

What is the purpose of SCBA’s positive-pressure system?

A

To prevent contaminants from entering the mask by maintaining a higher pressure inside the mask than the surrounding environment.

21
Q

How often should PPE and respiratory protection be inspected?

A

Before and after every use, and during regular scheduled maintenance checks.

22
Q

Why is it essential to select the correct boots for hazardous material response?

A

Boots must be resistant to the chemicals present and provide adequate protection against punctures, abrasion, and slips.

23
Q

What does the term ‘vapor-tight’ mean, and which PPE level requires it?

A

Vapor-tight means the suit is sealed to prevent vapor infiltration. Required for Level A PPE.

24
Q

What is the primary function of a PAPR?

A

To filter airborne contaminants while providing powered airflow for comfort in non-IDLH environments.

25
Q

What factors affect PPE selection at an incident scene?

A

Type of hazard (chemical, biological, radiological).
Environmental conditions (temperature, humidity).
Availability of decontamination.