Facemasks With A Net Harness; Positive Pressure Test; Facemask Seal Test - Scott Pro-Pak User Instructions

1. Hold the head-harness
straps, place chin in chin-cup and pull
straps over back of head, brushing hair
away from face-seal.
2. Adjust the facemask top strap so
that the mask is at the correct level with
the face and the head-harness pad is in
the centre of the back of the head, then
tighten harness straps in sequence:
Bottom, Middle, Top. DO NOT over-
tighten.
3. Inhale deeply to activate the DV
then breathe normally.
4.3.2 Facemasks with a Net
Harness
1. Hold the mask by the side of the
net harness, place the chin into the chin-
cup and pull the mask onto the face.
Grasp the pull-strap at the rear of the net
harness and pull the net over the head.
lower
2.
NOT over-tighten.
3.
then breathe normally.
4.4
1.
a finger under face-seal and check for a
steady outward flow of air. Remove finger
and allow mask to re-seal.
4.5
1.
hold of the hand-wheel. Hold breath for
10 seconds and listen carefully for leaks.
A leak will cause the pressure gauge
reading to fall.
2.
open the cylinder valve, loosen the head-
harness adjust the facemask and repeat
the test.
17
PRO-PAK
Tighten harness side straps. DO
Inhale deeply to activate the DV
POSITIVE PRESSURE
TEST
With the cylinder valve open, insert

FACEMASK SEAL TEST

Close the cylinder valve and keep
If the facemask fails the leak test: