Fit Checking Your Respirator
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It's important to check your respirator for
the proper fit each time you put it on. Respirators can
only work effectively if they fit correctly. A respirator
that does not fit appropriately may allow contaminants
to enter around the facepiece and be inhaled by the wearer.
Check your respirator for the proper fit each time you
put it on. Follow these instructions for properly fit checking
your respirator.
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Types of Respirators
and Cartridges
Putting on (Donning)
Your Respirator
Fit Checking Your
Respirator
How to Fit Test
Your
Respirator |
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Fit Check for Disposable
Filtering Facepiece (Particulate or Dust/Mist/Fume)
Respirators:
Cup both hands over the
front of the mask (to cover the filter media) and inhale.
Do not push on the mask.
Check to see if the facepiece
pulls in toward your face.
If the mask is drawn in
and no air leaks are detected around the facepiece, you
have a proper fit. If you detect any leakage of air, try
readjusting the nosepiece and/or the straps until you achieve
a good fit. |

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Fit Checks for Half
Mask and Full-Face Respirators:
Block the exhalation valve with the palm of your
hand.
Gently exhale and hold for
about 10 seconds.
Check to see if the facepiece
is bulging slightly.
If the facepiece remains
bulging and there are no air leaks between your face and
the facepiece, your respirator fits properly. If you do
detect leaks, readjust the straps and check again for a
proper fit. |
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Block the cartridges/filters with the palms
of your hands.
Gently inhale and hold for
about 10 seconds.
Check to see if the facepiece
is collapsing slightly.
If the facepiece remains collapsed
and there are no air leaks between the face and facepiece,
you have a properly fitting respirator. If you detect leaks,
readjust the straps and check again for a proper fit. |
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