Page 22 of 48P/N 595279-01 Rev. B 5/14
WARNING
FAILURE TO DON THE FACEPIECE AND/OR
FAILURE TO ADJUST THE HEAD HARNESS
AS DESCRIBED IN THIS INSTRUCTION MAY
RESULT IN A POOR FACE TO FACEPIECE
SEAL OR MAY RESULT IN THE FAILURE OF
THE FACE TO FACEPIECE SEAL DURING USE.
A POOR OR FAILED FACE TO FACEPIECE
SEAL MAY REDUCE THE DURATION OF
USE OF THE RESPIRATOR AND/OR EXPOSE
THE USER TO THE ATMOSPHERE THE
RESPIRATOR IS INTENDED TO PROTECT
AGAINST RESULTING IN SERIOUS INJURY
OR DEATH.
USE OF RESPIRATOR CONTINUED...
INSPECT THE FACEPIECE
Examine the facepiece to verify that it is complete and in serviceable
condition. Refer to the REGULAR OPERATIONAL INSPECTION section
of this instruction on Page 11 for details.
1. Verify that the inhalation valves in the nose cup are properly installed.
2. Verify that the nose cup is properly seated between the flanges of
the voicemitter ducts. Refer to the images in the REGULAR OPERA-
TIONAL INSPECTION section of this instruction.
3. Verify that the nose cup is properly
positioned in the facepiece. Refer to
the images in the REGULAR OPERA-
TIONAL INSPECTION section of this
instruction for proper configuration
verification.
WARNING
WHEN DONNING A FACEPIECE EQUIPPED
WITH A PROTECTIVE HOOD, VERIFY
THAT THE FACEPIECE IS PROPERLY
DONNED ACCORDING TO THE DONNING
PROCEDURES SECTION OF THIS
INSTRUCTION AND THAT THE PROTECTIVE
HOOD DOES NOT INTERFERE IN ANY WAY
WITH THE DONNING OR THE FACE TO
FACEPIECE SEAL. FAILURE TO VERIFY
THAT THE FACEPIECE IS SEALED TIGHTLY
AGAINST THE FACE MAY RESULT IN
LITTLE OR NO RESPIRATORY PROTECTION
AND MAY EXPOSE THE WEARER TO
SUBSTANCES THAT CAN CAUSE SERIOUS
INJURY OR DEATH.
FACEPIECE DONNING PROCEDURES
The user must be familiar with and practice the prescribed donning and
termination of use procedures prior to respirator use. Follow the donning
instructions for the model facepiece you have. The AV-3000 HT facepiece
has a FIVE strap head harness.
The respirator MUST NOT be worn when conditions prevent a good face
to facepiece seal. Such conditions include but are not limited to:
• long hair at the forehead or the side of the face that interferes with
the sealing surface or gets caught in the head harness buckles,
• facial hair such as growth of beard or sideburns, or low hairline that
crosses or interferes with the sealing surface,
• thick or protruding hairstyles such as pony tails or buns that interfere
with the smooth and close fit of the head harness to the head,
• temple pieces on corrective glasses,
• a skull cap that projects under the facepiece,
• excessive use of cosmetics including moisturizers, make-up, or after
shave,
• excessive perspiration,
• the absence of one or both dentures,
• weight loss or weight gain since last fit testing,
• facial scarring,
• anything else which interferes with the face to facepiece seal or the
fit of the head harness to the head.
Periodically repeating the fit testing is required to identify any physical
changes of the user (such as those listed above) which could effect the
fit of the facepiece.
NOTE
REFER TO THE APPROPRIATE STEPS IN THE FACEPIECE FITTING
SECTION OF THIS INSTRUCTION. DURING TRAINING, THE USER MUST
DETERMINE THE LEVEL OF TIGHTNESS OF THE HEAD HARNESS RE-
QUIRED TO PROVIDE THE BEST SEAL AND MOST SECURE FIT.
If the facepiece is to be used with a hood or other head gear that will cover
the facepiece head harness, don the facepiece first, then don the hood
or head gear. Attach the regulator after all other head gear is in place.
WARNING
RESPIRATORS SHALL NOT BE WORN WHEN
CONDITIONS PREVENT A GOOD FACE SEAL.
SUCH CONDITIONS MAY INCLUDE, BUT
ARE NOT LIMITED TO, FACIAL HAIR SUCH
AS GROWTH OF BEARD OR SIDEBURNS,
OR LOW HAIRLINE THAT CROSSES OR
INTERFERES WITH THE SEALING SURFACE,
THICK OR PROTRUDING HAIRSTYLES SUCH
AS PONY TAILS OR BUNS THAT INTERFERE
WITH THE SMOOTH AND CLOSE FIT OF
THE HEAD HARNESS TO THE HEAD, A
SKULL CAP THAT PROJECTS UNDER
THE FACEPIECE, OR TEMPLE PIECES ON
GLASSES. ALSO, THE ABSENCE OF ONE
OR BOTH DENTURES CAN SERIOUSLY
AFFECT THE FIT OF A FACEPIECE. USE OF
AN IMPROPERLY FITTED FACEPIECE MAY
LEAD TO EXPOSURE TO THE HAZARDOUS
ATMOSPHERE WHICH COULD RESULT IN
SERIOUS INJURY OR DEATH.
FIGURE 10
INSPECT THE FACEPIECE
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