Scott AIR-PAK 75i 2.2 Operating & Maintenance Instructions page 27

TO RESUME USE OF THE RESPIRATOR
If you must resume use of the respirator, proceed as follows:
1. NEVER resume use of a respirator where the end of service indica-
tor alarm was activated without first determining and correcting the
reason for the end of service indicator alarm.
2. Make sure that the remaining air supply in the cylinder is sufficient to
accomplish the purpose for which respirator use has been resumed.
As a general rule, replace partially depleted cylinders with full cylin-
ders before respirator use is resumed.
3. To resume use of the respirator, repeat the respirator and facepiece
donning procedures as defined in the USE OF RESPIRATOR section
of this instruction.
4. When operations using the respirator are complete, leave con-
taminated area or be certain that respiratory protection is no longer
required and proceed with the TERMINATION OF USE steps described
above.
Page 27 of 44
WARNING
IF RESPIRATOR USE IS RESUMED AFTER
THE AIR HAS BEEN PARTIALLY CONSUMED
(CYLINDER LESS THAN FULL), YOU MUST BE
CERTAIN THAT THE REMAINING AIR WILL BE
SUFFICIENT FOR YOUR SAFETY. (SEE STEP
2 IN USING THE RESPIRATOR SECTION.)
P/N 595236-01 Rev. B 10/11