2 PRE-USE INSTRUCTIONS
2.1 FACEPIECE
Remove the facepiece assembly from its container and visu-
ally check the facepiece to make sure that the sealing flange
is not distorted, that all components including the exhalation
valve flap are in place, in good condition and secure.
2.2 FILTERS
If replaceable pad style filters are required, they should be
assembled to the cartridges or filter holders before the car-
tridges or filter holders are attached to the facepiece. Follow
the directions on the filter for proper orientation. Place the
filters in the appropriate filter covers so that the entire outer
edges of the filters are seated evenly and securely against
the inner wall of the filter covers. (See Figure 1.)
Snap the filter covers, with the filters seated evenly and
securely, to the cartridges. (See Figure 2.)
2.3 ASSEMBLING THE RESPIRATOR
Assemble the respirator by screwing the two appropriate air-
purifying elements onto the inhalation connectors mounted
on the facepiece lens. Check to be sure that each air-purify-
ing element is effectively sealed against the grommet on the
facepiece lens(See Figure 3). Inspect to make certain that
the respirator has not been damaged.
If using the Back Pack Accessory, assemble the respirator
by screwing the breathing tubes to the inhalation connectors
mounted on the facepiece lens. Screw the two appropriate
air-purifying elements onto the inhalation connectors located
on the Back Pack plate. Check to be sure that each air-puri-
fying element is effectively sealed against the grommet on
the Back Pack back plate. Inspect to make certain the respi-
rator and Back Pack have not been damaged.
FIGURE 1
Assembling the Filter
FIGURE 2
Attaching the Cover
FIGURE 3
Attaching Air-Purifying Elements
6
E
E
N
N
G
G
L
L
II
S
S
H
H
Apply an anti-fog compound to the inside of the lens if
the respirator will be used at temperatures below 32°F
(0°C). This will reduce fogging on the inside of the face-
piece lens so the user can continue to see through it.
Do not use the 5400 Series facepieces without the
oral/nasal cup installed. Use without the oral/nasal cup
will result in a greater tendency for the lens to fog and
increase the carbon dioxide level inside the facepiece
resulting in worker fatigue.
WARNING
The respirator facepiece and air-purifying elements
may be sold separately. Do not use this respirator
unless the proper air-purifying elements are attached.
See the NIOSH Approval label included in the air-puri-
fying element packaging for a list of the approved com-
ponents, or check with your Safety Director or
Industrial Hygienist or North Safety Products Customer
Service in the United States at 1-800-430-4110 or
1-401-943-4400.
WARNING
