CleanSpace HALO - Precautions for Noisy Environments; Doffing the Respirator

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f. You smell or taste contaminants.
g. Your face, eyes, nose or mouth experience irritation.
h. You suspect the concentration of environmental contaminants has reached levels at which
this respirator may no longer provide protection or the oxygen/carbon dioxide levels change
so that PAPRs should not be worn.
6. Follow the exiting and decontamination procedures as documented in the workplace Respiratory
Protection Program. Follow those procedures with the instructions below when removing the respirator.
DOFFING THE RESPIRATOR:
Remove the respirator by locating one of the Mask Release Clips (see Section 7) on either side of the respirator.
Squeeze the clip and gently pull the power unit from the mask. When the respirator is removed, the motor/airflow will
continue to blow for 10 seconds and then automatically switch to Standby Mode when no breathing is detected.
There is no need to turn the respirator off. See Figure 24.
Figure 24 - Mask Release Clips
NOTE: Once in Standby Mode (green battery indicators on), if the respirator is not donned (i.e. no breath is
detected) within three (3) minutes the power unit will switch into Off Mode (battery indicators off) and the motor will
not be triggered by the wearer’s breathing.
15. Working in Noisy Environments
CleanSpace respirators have two audible and visual (2) alarms for battery and filters. If the environment is noisy and
the user will not hear the alarms, the following precautions must be taken:
• Do not enter the contaminated zone unless all three green battery indicator lights are illuminated.
• Do not work in a high noise area for more than four (4) hours. At the end of four (4) hours, leave the
contaminated zone and check;
o the filter blocked light is not illuminated; AND
o all three green battery indicator lights are still illuminated.
• If two or fewer green battery indicator lights are illuminated, recharge the CleanSpace respirator until 3 lights
are showing again (and the 3
rd
one has stopped flashing).
• If the filter blocked light is illuminated, change the filter.
• Be alert for breathing difficulty, increased resistance or air flow stopping. If these things happen, exit the
contaminated zone immediately.
WARNING
Do not remove the respirator until you have vacated the contaminated area. If you have an
acute and spontaneous health episode (i.e. experiencing dizziness) and believe removing the
respirator while you leave the contaminated area may help, remove the respirator with
caution.