HAZWOPER 40 Exam Guide - Respiratory
Protection & PPE (New 2024/ 2025 Update)
Questions and Verified Answers| 100%
Correct| A Grade
Respiratory Protection
QUESTION
Lesson Description
Answer:
On a hazardous waste site, many different types and levels of inhalation hazards exist. This
Respiratory Protection lesson introduces waste site workers to information they need to
thoroughly understand available respiratory protection and how to effectively use it.
The lesson lists the OSHA requirements for respiratory protection programs. Next, it examines
the different types of respiratory equipment available, protection factors, and those things that
affect respiratory equipment fit so workers can select the best respirator for the hazards they will
encounter. The lesson also explains how to properly test respirator fit.
QUESTION
Learning Objectives
At the completion of this lesson, you will be able to
Answer:
Outline OSHA requirements under 29 CFR 1910.134 for respiration use programs.
Identify and properly select respiratory equipment.
Describe and use atmosphere-supplying respirators.
Identify types of air-purifying respirators (APRs), describe how they work and how to use them
for respiratory protection.
Identify self-contained breathing apparatus (SCBA) types.
Explain how SCBAs work and determine appropriate use for respiratory protection.
Describe how supplied-air respirators (SAR) work and determine appropriate use for respiratory
protection.
Discuss how combination SCBA/SAR works and differentiate it from the SAR escape provision.
Describe those things that affect/interfere with respirator fit and test respirator fit.
,QUESTION
Introduction
Answer:
On a hazardous waste site, many different types and levels of inhalation hazards exist. Waste site
workers need to thoroughly understand the different types of respiratory equipment available,
protection factors, and fit testing so they can select the best respirator for the hazards they will
encounter.
QUESTION
Lesson Focus
This lesson focuses on the following topics:
Answer:
Respiratory Protection Program
Selection of Respiratory Equipment
Atmosphere-Supplying Respirators
Air-Purifying Respirators (APRs)
Self-Contained Breathing Apparatus (SCBA)
Supplied-Air Respirators (SAR)
Respirator Fit
QUESTION
Fumes & Vapors (Video)
https://player.360training.com/ICPFileSystem/PersistentAssets/413763/643992/HAZ40-L7-V1-
GM_v2.mp4
Answer:
,QUESTION
Employers and Respiratory Hazards
https://player.360training.com/ICPFileSystem/PersistentAssets/413775/644029/HAZ40-L7-V2-
GM_v2.mp4
Answer:
QUESTION
Under 29 CFR 1910.134, OSHA requires employers to have a respiratory protection program
that covers all employees whose job requires the use of respirators. This program must meet the
following requirements:
Answer:
1. Respirators will be selected based on hazards to which the worker is exposed.
2. The user will be instructed and trained in the proper use of respirators and their limitations.
3. Written standard operating procedures covering the selection and use of respirators must be
established.
4. Respirators must be regularly cleaned and disinfected. Those used by more than one worker
must be thoroughly cleaned and disinfected after each use.
5. Respirators used routinely will be inspected during cleaning. Worn or deteriorated parts will
be replaced.
6. Respirators will be stored in a convenient, clean, and sanitary location.
7. Appropriate surveillance of work area conditions and degree of employee exposure or stress
shall be maintained.
8. The user should be properly fit tested and taught how to check face-piece fit before each use.
, 9. The employer, through medical evaluations, will determine if a user is physically able to
perform the work and use the equipment. This medical status should be reviewed periodically,
when conditions change, or the program administrator, PLHCP, or supervisor recommends re-
evaluation.
10. The effectiveness of the program should be evaluated on a regular basis
QUESTION
Selection of Respiratory Equipment
Answer:
Respiratory protection is of primary importance since inhalation is one of the major routes of
exposure to chemical toxicants. Respiratory protective devices (i.e., respirators) consist of a face-
piece connected to either an air source or an air-purifying device.
QUESTION
Positive and Negative Pressure Airflow
Different types of airflow may influence the selection of a respirator:
Positive pressure airflow
Negative pressure airflow
Answer:
Positive-Pressure Airflow
Positive-pressure respirators maintain a positive pressure in the face-piece during both inhalation
and exhalation. The two main types of positive-pressure respirators are pressure-demand and
continuous flow.
Pressure-Demand
In pressure-demand respirators, a pressure regulator and an exhalation valve on the mask
maintain the mask's positive pressure, except possibly during high breathing rates. If a leak
develops in a pressure-demand respirator, the regulator sends a continuous flow of clean air into
the face-piece, preventing penetration by contaminated ambient air.
Protection & PPE (New 2024/ 2025 Update)
Questions and Verified Answers| 100%
Correct| A Grade
Respiratory Protection
QUESTION
Lesson Description
Answer:
On a hazardous waste site, many different types and levels of inhalation hazards exist. This
Respiratory Protection lesson introduces waste site workers to information they need to
thoroughly understand available respiratory protection and how to effectively use it.
The lesson lists the OSHA requirements for respiratory protection programs. Next, it examines
the different types of respiratory equipment available, protection factors, and those things that
affect respiratory equipment fit so workers can select the best respirator for the hazards they will
encounter. The lesson also explains how to properly test respirator fit.
QUESTION
Learning Objectives
At the completion of this lesson, you will be able to
Answer:
Outline OSHA requirements under 29 CFR 1910.134 for respiration use programs.
Identify and properly select respiratory equipment.
Describe and use atmosphere-supplying respirators.
Identify types of air-purifying respirators (APRs), describe how they work and how to use them
for respiratory protection.
Identify self-contained breathing apparatus (SCBA) types.
Explain how SCBAs work and determine appropriate use for respiratory protection.
Describe how supplied-air respirators (SAR) work and determine appropriate use for respiratory
protection.
Discuss how combination SCBA/SAR works and differentiate it from the SAR escape provision.
Describe those things that affect/interfere with respirator fit and test respirator fit.
,QUESTION
Introduction
Answer:
On a hazardous waste site, many different types and levels of inhalation hazards exist. Waste site
workers need to thoroughly understand the different types of respiratory equipment available,
protection factors, and fit testing so they can select the best respirator for the hazards they will
encounter.
QUESTION
Lesson Focus
This lesson focuses on the following topics:
Answer:
Respiratory Protection Program
Selection of Respiratory Equipment
Atmosphere-Supplying Respirators
Air-Purifying Respirators (APRs)
Self-Contained Breathing Apparatus (SCBA)
Supplied-Air Respirators (SAR)
Respirator Fit
QUESTION
Fumes & Vapors (Video)
https://player.360training.com/ICPFileSystem/PersistentAssets/413763/643992/HAZ40-L7-V1-
GM_v2.mp4
Answer:
,QUESTION
Employers and Respiratory Hazards
https://player.360training.com/ICPFileSystem/PersistentAssets/413775/644029/HAZ40-L7-V2-
GM_v2.mp4
Answer:
QUESTION
Under 29 CFR 1910.134, OSHA requires employers to have a respiratory protection program
that covers all employees whose job requires the use of respirators. This program must meet the
following requirements:
Answer:
1. Respirators will be selected based on hazards to which the worker is exposed.
2. The user will be instructed and trained in the proper use of respirators and their limitations.
3. Written standard operating procedures covering the selection and use of respirators must be
established.
4. Respirators must be regularly cleaned and disinfected. Those used by more than one worker
must be thoroughly cleaned and disinfected after each use.
5. Respirators used routinely will be inspected during cleaning. Worn or deteriorated parts will
be replaced.
6. Respirators will be stored in a convenient, clean, and sanitary location.
7. Appropriate surveillance of work area conditions and degree of employee exposure or stress
shall be maintained.
8. The user should be properly fit tested and taught how to check face-piece fit before each use.
, 9. The employer, through medical evaluations, will determine if a user is physically able to
perform the work and use the equipment. This medical status should be reviewed periodically,
when conditions change, or the program administrator, PLHCP, or supervisor recommends re-
evaluation.
10. The effectiveness of the program should be evaluated on a regular basis
QUESTION
Selection of Respiratory Equipment
Answer:
Respiratory protection is of primary importance since inhalation is one of the major routes of
exposure to chemical toxicants. Respiratory protective devices (i.e., respirators) consist of a face-
piece connected to either an air source or an air-purifying device.
QUESTION
Positive and Negative Pressure Airflow
Different types of airflow may influence the selection of a respirator:
Positive pressure airflow
Negative pressure airflow
Answer:
Positive-Pressure Airflow
Positive-pressure respirators maintain a positive pressure in the face-piece during both inhalation
and exhalation. The two main types of positive-pressure respirators are pressure-demand and
continuous flow.
Pressure-Demand
In pressure-demand respirators, a pressure regulator and an exhalation valve on the mask
maintain the mask's positive pressure, except possibly during high breathing rates. If a leak
develops in a pressure-demand respirator, the regulator sends a continuous flow of clean air into
the face-piece, preventing penetration by contaminated ambient air.
