D. HOW TO USE THE RESPIRATOR
To receive the maximum protection available from the respirator, you must read,
understand, and follow all the warnings, limitations, and instructions contained in
this manual and follow your employer’s instructions on the use and maintenance
of this respirator. Read and understand the following warning prior to using the
respirator.
WARNING
• Never remove the respirator for any reason while you are in the work
area.
• You must leave the work area immediately if the facepiece-to-face seal is
disturbed for any reason, such as:
a. Slipping due to excessive sweating or excessive head movement.
b. The facepiece becomes dislodged as a result of being knocked.
c. You sneeze or cough while wearing the facepiece.
d. You need to blow your nose or scratch covered areas of your
face.
e. For any other reason that would cause the facepiece seal to be
disturbed.
• You must restore the facepiece-to-face seal and perform a fit check in a
non-hazardous environment before reentering the work area.
• Failure to comply with this warning may lead to personal injury, illness,
or death.
E. CHEMICAL CARTRIDGE SERVICE LIFE AND REPLACEMENT
WARNING
• OSHA allows the use of respirators for protection against contaminants
with poor warning properties such as isocyanates. To maximize
protection against isocyanates and other chemicals with poor
warning properties, it is important to replace the cartridges when the
end-of-service-life indicator (if so equipped) has changed color, or in
accordance with an OSHA compliant cartridge change-out schedule
based on objective information or data that ensures the cartridges are
changed before the end of their service life.
• You must immediately leave the contaminated area if you taste or smell
contaminants, or if your eyes or throat become irritated. Replace the
cartridges before reentering the contaminated area.
• You must replace the combination cartridges when breathing becomes
uncomfortable or difficult. As particulates collect on the filter surface,
the breathing resistance of the respirator increases. If you wait too long
to replace the cartridges, particulates may leak past the face seal instead
of being collected on the filter; therefore, SPERIAN recommends that
the cartridges be changed at least daily.
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