Use
3
Use
3.1
Prerequisites for use
In order to make sure that the correct facepiece size is used, perform
a quantitative fit test. The fit test is to be conducted in accordance with
the requirements outlined in the OSHA Respiratory Protection
Standard 29 Code of Federal Regulations, Part 1910.134.
WARNING
!
Facial hair under the facepiece seal can cause leaks. The
facepiece should not be used by people with beards and
sideburns. There is danger of poisoning.
The bow of glasses under the facepiece seal also causes
leaks. A spectacle kit should be used in such cases.
3.2
Preparation for use
1. Install the facepiece spectacles if necessary.
2. Open the head harness as far as possible (figure B).
3. Lay the carrying strap around the neck and fasten the facepiece in
the standby position using the carrying strap.
78
3.3
1. Check the facepiece to ensure that the head strap is securely
2. Loosen the facepiece from the standby position.
3. Spread the head strap, place chin in recess (figure C), center the
4. Make sure that neither hair nor head strap impair the sealing
5. First, tighten both neckbands (figure D, step 1), then tighten the
6. Only tighten the front strap (figure D, step 3) if required.
7. Breathe normally.
8. Check for leaks:
9. Check the exhalation valve: Seal the mask connector and exhale
10. Connect either canister, powered air-purifying respirator, self-
(Use Instructions for NIOSH-approved full facepieces)
Donning the facepiece
fastened, that the nose cup and the exhalation valve cover are
positioned correctly and that all other parts are in good condition.
head strap on the head. Make sure that the head strap rests flush
against the head.
frame, and that the sealing frame contacts the face evenly and
adjusts to its contours.
temple straps (figure D, step 2) evenly towards the back of the
head so that the middle of the head strap remains on the middle of
the head (figure E).
Spent air should leave the exhalation valve easily.
a. Seal the mask connector with the palm of your hand and bre-
athe in until a vacuum is produced.
b. Briefly hold your breath: the vacuum must be maintained. If it
is not, the head strap must be tightened further.
c. Repeat the leak test twice.
vigourously.
The exhaled air must escape easily, otherwise replace the
exhalation valve disc (see Chapter 4.3.6 on Page 82).
contained breathing apparatus, or air line breathing apparatus.
WARNING
!
The facepiece should only be used if perfectly tight, other-
wise there is danger of poisoning!
Dräger X-plore 6000