7. Grip the facepiece between your thumb and fingers with both hands
8. Insert your chin into the lower part of the facepiece.
9. Pull the facepiece headstraps over your head.
10. Smooth the straps flat against your head.
a. Support the facepiece by holding the breathing tube at the end of the coupling
nut assembly with one hand.
b. Tighten the lower (neck) straps.
NOTE:
Pull the straps straight back, not out.
c. Tighten the side (temple) straps.
d.
For the Ultravue Facepiece:
Tighten the top (forehead) strap to position the lens for best vision, and to support
the facepiece weight.
4.3
Section C: Air-Tightness Test (Face-to-Facepiece Seal)
WARNING!
If the breathing tube is worn under the hood, move your head from side to side as well as up and down to check for freedom of
head movement. If head movement is restricted, or this method compromises the face-to-facepiece seal in any way, wear the
breathing tube on the outside of the hood only.
Failure to follow this warning can result in serious personal injury or death.
Supplied-Air Respirators Only:
Place the palm of your hand over the breathing tube
coupling nut, or place your thumb over the breathing tube opening inside the coupling nut.
Combination Duo-Flo Type Respirators Only:
1. Place your hands tightly over the inlet(s) of the filter.
2. Inhale gently so that the facepiece collapses against your face. Hold your breath for 10 seconds.
3. The facepiece should remain collapsed if the seal is air-tight.
17
Abrasi-Blast Respirator
US
4 Donning
