Respirator Seal by TPenney

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									   Respirator Seal

Become a Safety Seal Expert
              When and Where
• Workers should use respirators for protection from
  contaminants in the air only if other hazard control
  methods are not practical or possible under the
  circumstances. Respirators should not be the first
  choice for respiratory protection in workplaces. They
  should only be used: when following the "hierarchy of
  control" is not possible (elimination, substitution,
  engineering or administrative controls)
• while engineering controls are being installed or
  repaired
• when emergencies or other temporary situations arise
  (e.g., maintenance operations)
        Employee Exposure

Exposure to a concentration of an airborne
contaminant that would occur if the employee
were not using respiratory protection.
Respirator Program Elements
1.   Selection
2.   Medical evaluation
3.   Fit testing
4.   Use
5.   Maintenance and care
6.   Breathing air quality and use
7.   Training
8.   Program evaluation
           Two types many brands
The two main types are air-purifying respirators (APRs) and supplied-
air respirators (SARs).
Air-purifying respirators can remove contaminants in the air that you
breathe by filtering out particulates (e.g., dusts, metal fumes, mists,
etc.). Other APRs purify air by adsorbing gases or vapours on a sorbent
(adsorbing material) in a cartridge or cannister. They are tight-fitting
and are available in several forms:
mouth bit respirator (fits in the mouth and comes with a nose clip to
hold nostrils closed - for escape purposes only)
quarter-mask (covering the nose and mouth),
half-face mask (covering the face from the nose to below the chin), or
full facepiece (covering the face from above the eyes to below the
chin).
Respirators with a full facepiece also protect the eyes from exposure
to irritating chemicals.
Fit Test
A picture worth Noting
      Respiratory Inlet Covering
• That portion of a respirator that forms the
  protective barrier between the user’s
  respiratory tract and an air-purifying device or
  breathing air source, or both
• May be a facepiece, helmet, hood, suit, or a
  mouthpiece respirator with nose clamp
Tight -Fitting Coverings



Quarter Mask           Half Mask




Full Facepiece   Mouthpiece/Nose Clamp
                   (no fit test required)
Like Shoes
                    Fit Factor

A quantitative estimate of the fit of a particular
respirator to a specific individual, and typically estimates
the ratio:

      Concentration of a substance in ambient air
    Concentration inside the respirator when worn
                   Filter

A component used in respirators to remove
solid or liquid aerosols from the inspired air.
Also called air purifying element.
Negative vs. Positive
      How Cartridge Respirators
                Work




Air inhaled in                     Air inhaled in




                 Air exhaled out
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   How Cartridge Respirators Work



Air movement is controlled
by rubber inhalation and            straps
exhalation valves.
                               inhalation        Facepiece
                               valves
The adjustable straps are
used to keep the respirator
snug on the face.
                                   exhalation   cartridge
                                   valve        valve cover

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            Types of Cartridges




Particulate cartridges filter out dusts, mists and
fumes only.
Chemical cartridges trap different types of
chemicals, but not dust, mists or fumes.
Cartridges are color-coded for the type of chemical
or dust.


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Respirator Cartridge Color Coding

     Dust/fumes/mists - teal

     Dust/fumes - pink (HEPA filter)

      Ammonia- green

     Organic vapor (solvents) - black

     Acid gas (sulfuric acid, for example) - white

      Acid gas and organic vapor - yellow

      Chlorine – white & yellow
  These are some commonly used cartridges
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How to Clean and Maintain Respirators


Respirators must be
cleaned, inspected and
maintained regularly.
Cleaning is especially
important in dusty areas.
Clean in warm soapy
water.
Allow to dry thoroughly
before storing or using.


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   How Should Respirators be Stored?


Respirators must be
stored in a clean dry
place.

Don’t store them
unprotected in your work
area.
                             Don’t store them like this!
The storage location for
your respirators is:[state
location here]
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              Use of Respirators
              Facepiece Seal Protection
• Respirators with tight-fitting face pieces must not
  be worn by employees who have facial hair or
  any condition that interferes with the face-to-
  face piece seal or valve function
• Corrective glasses or goggles or other PPE must
  be worn in a manner that does not interfere with
  the face-to-face piece seal
• Employees wearing tight-fitting respirators must
  perform a user seal check each time they put on
  the respirator using the procedures.
                 Question 1

What kind of cartridge is needed for ammonia?

     a) A large one

     b) A chemical cartridge

     c) A black one

     d) Any kind will work




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                    Question 2


When should a chemical cartridge be changed?
     a) Every day
     b) When it is hard to breathe through
     c) When you feel like it
     d) On a regular basis depending on the chemical



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                  Question 3

Why can’t you wear a respirator over a beard?

     a) The beard will interfere with your
        breathing

     b) It will cause the respirator to leak

     c) It will cause skin irritation

     d) It will look stupid


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                    Question 4

When is a half-face or full-face respirator not
protective enough?
      a) In the case of a large chemical spill
      b) When you have to talk to other
         employees
      c) When you have to enter a tank
      d) When your eyes burn


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                 Question 5

What does it mean if you smell a chemical while
wearing your respirator?
     a) The cartridge is used up
     b) The respirator doesn’t fit properly
     c) The exhalation valve is missing
     d) You have a very sensitive nose




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