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1 Hold the respirator cup in your hand,allowing the head-straps to hang freely.
2 Hold the respirator under the chin with the nose-piece facing outwards. Place the respirator in position on your face ensuring that the lower part of the respirator is positioned under your chin. Pull the lower head-strap over your head and place it around the neck below the ears. Still holding the respirator against the face with one hand, pull the top head-strap over your head and position it above the ears, around thecrown of the head. Respirators with adjustable head-straps only: adjust the tension by pulling the head-straps with both hands. (Tension may be decreased by pushing out on the back of the buckle).
3 Mold the nose area to the shape of the face, running the finger tips of both hands from the top of the nose-piece down both sides while pressing inward. Always use both hands.
4 Fit check the face seal as follows: Place both hands over the respirator. If the respirator is not fitted with an exhalation valve, exhale sharply; if the respirator is fitted with an exhalation valve, inhale sharply. If leaks around the edge are detected, re-adjust the head-straps and/or the nosepiece. Repeat until a satisfactory face fit has been achieved. Important: If you feel that the headbands are too loose, increase the tension by tying a small knot in the headband.
WARNING: In any circumstance, if you cannot achieve a satisfactory fit, do NOT enter the contaminated area.
CHOOSING THE CORRECT RESPIRATOR
Choosing the right respirator involves four main steps:
1 Determine the type of hazard
2 Determine if the hazard presents an immediate danger to life and health
3 Determine the type of contaminant
4 Select the appropriate respirator based on concentration levels of the contaminant
When selecting a respirator, users should consider the chemical and physical properties of the contaminant, as well as the toxicity and concentration of the hazardous material and the amount of oxygen present. Air-purifying respirators use filters or sorbents to remove harmful substances from the air. They range from simple disposable masks to sophisticated devices. They do not supply oxygen and must not be used in oxygen-deficient atmospheres or in other atmospheres which present an IDLH. Supplied Air Respirators provide breathable air from a clean air source other than the surrounding contaminated work area.
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