HAZMAT Suits – Levels of Protection

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HAZMAT SUITS LEVELS OF PROTECTION
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WHAT IS A HAZMAT SUIT?
The U.S. Department of Homeland Security defines
a hazmat suit as "an overall garment worn to
protect people from hazardous materials or
substances, including chemicals, biological
agents, or radioactive materials."
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TYPES OF HAZMAT SUIT
LEVEL A protection is required when the greatest potential for exposure to hazards exists. LEVEL B
LEVEL C LEVEL D Protection is a simple work uniform affording minimal protection.
protection is needed under circumstances that
require the highest level of respiratory
protection, but a lower level of skin protection
is needed.
protection is required when the concentration and
type of airborne contaminants have been
identified and the criteria for using
air-purifying respirators are met.
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LEVEL A
This level provides the highest available level
of respiratory, skin, and eye protection from
solid, liquid, and gaseous chemicals. This
ensemble is used when the hazards have been
identified to pose a high level of threat to the
skin, eyes, and respiratory system. For example,
operations that are conducted in poorly
ventilated areas and confined spaces require the
use of level A protection.
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LEVEL B
This ensemble provides the same level of
respiratory protection as Level A, but less skin
protection. Level B provides liquid splash
protection but does not safeguard against
chemicals and vapors.
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LEVEL C
This level provides the same level of skin
protection as Level B (that is, liquid splash
protection but no chemical or vapor protection),
but a lower level of respiratory protection.
Level C ensembles are used when contact with
contaminants on-site will not affect the skin.
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LEVEL D
This level of protection is used when the
atmosphere contains no known hazard and work
functions preclude splashes, immersion, the
potential for inhalation, or direct contact with
hazardous levels of chemicals.
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A FINAL NOTE
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