User Seal Checks - Honeywell RU6500 Serie Manuel D'instructions

Do NOT use your respirator if you cannot achieve a good facepiece-to-face seal due to:
1) Facial hair, including stubble.
2) Eyewear with temples that interfere with the sealing area.
3) Head or face coverings, jewelry or any other items that interferes with the sealing area, or
4) Missing teeth or dentures, facial deformities or deep scars that prevent a good seal.
Failure to comply with these warnings will result in the risk of serious injury, illness or death.
Be careful not to over-tighten the respirator. Over-tightening could distort the seal and may
cause leakage between the facepiece to face seal.
3.2

USER SEAL CHECKS

Each time you put on a respirator before entering a hazardous atmosphere, and periodically
while wearing the respirator in the contaminated area, you must check the effectiveness of
the facepiece to face seal by conducting a User Seal Check.
1) Positive Pressure User Seal Check:
a) Place the palm of your hand over the exhalation valve and exhale normally (see
Figure 15).
b) If the facepiece moves away from your face slightly and no air leaks between the face
and the facepiece an effective seal has been obtained.
2) Negative Pressure User Seal Check:
a) Place the palms of both hands over the cartridges or filter covers and inhale normally.
Hold your breath for five seconds (see Figure 16).
b) If the facepiece pulls into your face slightly and no air leaks between the face and the
facepiece an effective seal has been obtained.
3) If you detect any leaks, reseat the facepiece and/or readjust the tension of the head straps.
Note that sometimes the straps may need to be loosened. Reseating of the seal should
only be done in an uncontaminated area.
WARNING
NOTE
14
Figure 15
Figure 16