6
Donning & Fitting
W
WARNING
Failure to follow these instructions
may reduce respirator performance, overexpose you to
contaminants, and
may result in sickness or death:
a. Users must be clean-shaven where the respirator’s face seal comes into contact with their face
(M-100, M-200 and M-300 Series).
b. Always properly assemble and wear both the inner and outer shroud (M-400 Series).
c. Ensure visor frame firmly latches in the closed position. Replace worn or damaged parts if
required (M-400 Series).
d. The M-Series Headgear is one component of an approved respiratory protection system.
Always read and follow all
User Instructions
supplied with your M-Series Headgear, 3M™ PAPR
Blower Unit or Supplied Air Device in order to ensure correct system operation.
e. Do not use with parts or accessories other than those manufactured by 3M as described in
these
User Instructions
or on the NIOSH Approval Label for this respirator.
The following instructions cover donning and fitting your 3M™ Headgear. Follow the
User Instructions
for
your 3M™ PAPR or Supplied Air Unit to properly assemble, don, and fit your specific air source. Complete
all necessary performance checks as described in those
User Instructions
and verify that the airflow is
adequate before donning your headgear and entering a contaminated environment.
NOTE:
You may want to have a colleague help check for proper donning.
1. Connect an approved breathing tube to the headgear. See “Connecting & Disconnecting Breathing
Tubes” section
for additional information.
2. With the visor (lens) in the up position, place the headgear on your head.
3. Turn the ratchet knob at the back of the suspension clockwise until the suspension feels snug but
comfortable. Turn counterclockwise to loosen, if needed. The suspension fits head sizes from 51-64 cm
(US hat sizes 6 3/8 to 8). An optional size reducing ratchet comfort pad (M-956) is available to provide
additional comfort. This comfort pad also can be used to improve fit and stability for smaller head sizes.
See “Replacement Parts and Accessories” section of these
User Instructions
for additional information.
4. If the height on your head or the balance of the headgear is not comfortable, remove the headgear,
turn upside down, and adjust the suspension.
a. The suspension headband can be adjusted at four locations. There are two adjustment locations
in the rear of the headgear and two in the front. To change the position of the headband, pull the
height adjustment slot off the peg and re-position to another slot on the “ladder” (Fig. 2). Each
location can be adjusted independently for a custom fit.
i. M-100 and M-200: With the headgear upside down, moving up the “ladder” will
lower
the
position of the headband. Moving down the “ladder” will
raise
it.
ii. M-300 and M-400: With the headgear upside down, moving up the “ladder” will
raise
the
position of the headband. Moving down the “ladder” will
lower
it.
Fig. 2
[email protected] | http://www.bestmaterials.com | 1-800-474-7570
