STARTING THE RESPIRATOR
P/N 595373-01 Rev C 202004
23
Figure 3-12 Donning problems (Vision C5 facepiece shown)
16 Proceed to “Starting the Respirator” on page 23 and perform a negative pressure leak test as instructed.
Starting the Respirator
To start the respirator
1 Fully depress the center of the air saver/donning switch on the top of the E-Z Flo+ regulator or firmly pull the
auto air-saver switch on the E-Z Flo C5 regulator latch and release.
The air-saver mechanism prevents the rapid loss of air supply when the cylinder valve is open and the
facepiece is removed from the face or the regulator is removed from the facepiece.
2 If the regulator is not attached to the facepiece, proceed as follows:
a Verify that the regulator gasket is not damaged and is in place around the outlet port of the regulator.
b Align the regulator outlet port with the facepiece port. (The red purge valve on the regulator will be in the 12
o’clock position.) Insert the regulator into the facepiece port. See Figure 3-13.
c Rotate the regulator counterclockwise (as viewed from the inside of the facepiece) until the red purge valve
knob is on the left side of the facepiece. The lock tab of the E-Z Flo+ regulator or the latch on E-Z Flo C5
regulator will lock into the facepiece retainer with a click. When the lock tab or latch is properly engaged,
the regulator will not rotate. See Figure 3-13.
TIP
OSHA standard 29 CFR 1910.134 requires teams of at least two people when entering into and operating in
an IDLH atmosphere. If necessary, ask your partner to verify that you have donned the facepiece properly.
Twisted head harness strap
Head harness not centered
Head harness too high
Facepiece too low
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