airtight; if not, the mask straps need
readjusting.
7. Remove the mask by loosening the neck
straps. Use your fingers to rotate the rear
of the buckle forward. Grasp the mask by
the outlet valve assembly and pull the mask
down, outward, and up. Adjust the mask
neck straps so that the ends are within
1 inch of the buckles.
8. Install an outsert (if prescribed).
The mask is now ready for quick donning.
Stow your mask carefully to avoid any damage
or deformation by ensuring that accessories are
installed in their proper order and position, as
follows:
1.
2.
3.
4.
5.
6.
7.
8.
Stow the waterproofing bag in the
large inside pocket at the front of the
carrier.
Install the outsert (if available) in the
carrier.
Put a second outsert in the outsert bag and
place over the first outsert.
Put a faceform in the mask. (Place the
open end towards the bottom of the face-
piece.)
Stow the M258A1 Decontaminating Kit, if
issued, in the outside side pocket.
Stow the M8 or M9 paper, if furnished,
with the waterproofing bag.
Slide the mask, top first, into the carrier,
with the opening of the mask against the
short side of the carrier.
Place the carrier in a cool, dry place. Hang
it by the shoulder strap or D-ring if
possible.
DONNING PROCEDURES. —Perform the
following steps for putting on your mask quickly
and correctly. (These procedures are based on the
presumption that unapproved eyeglasses have
been removed.) When given the command, take
the following steps:
1.
2.
3.
4.
STOP BREATHING.
Close your eyes tightly.
Remove any headgear.
With the left hand, grasp the carrier flap
tab and open. Reach into the carrier with
the right hand and grasp the mask by the
front portion of the facepiece in the area
of the voicemitter outlet valve assembly.
Withdraw the mask.
5.
6.
7.
8.
9.
Hold the outlet valve assembly in the palm
of one hand. Using the free hand, push any
forehead hair aside. Place the mask on the
face, forcing the chin cup very tightly
against the chin. Pull the head harness over
the head, using the quick-don tab.
Hold in this position and tighten each neck
strap snugly.
Expel the air that has been held in the
lungs.
Press the palm of one hand over the
canister and inhale to check seal.
Open your eyes and RESUME NORMAL
BREATHING.
CBR PROTECTIVE CLOTHING
Basically, any clothing or coverall that covers
the body can provide a degree of protection from
CBR contaminants. However, the type of clothing
and its proper wear will determine the amount of
protection. Three types of clothing are useful, to
varying degrees, in CBR defense: impregnated
(permeable) clothing or the newer chemical-
protective overgarment, wet-weather clothing, and
ordinary work clothing.
Impregnated Clothing
Impregnated clothing and rubber overshoes
are supplied to ships in quantities sufficient to
outfit 25 percent or more of the ship’s personnel.
An impregnated clothing outfit consists of
impregnated socks, gloves, trousers with attached
suspenders (overalls), and a jumper (parka) with
an attached hood. These items have been treated
with a CW agent-neutralizing chemical, CC2, plus
a viscous binder, chlorinated paraffin. The
presence of these two chemicals results in a faint
odor of chlorine and a slightly greasy or clammy
feel. Figure 6-8 shows a person dressed in a suit
of impregnated clothing with an ND Mk V
protective mask, rubber gloves, and overboots.
Impregnated clothing is primarily effective
against the blister agents; it provides little
protection against the G-nerve agents. It offers
limited protection against other types of CW/BW
contaminants. If this clothing is contaminated by
large drops or splashes of blister agents, clean
clothing should be put on as soon as possible.
Impregnated clothing alone is effective against
CW agent vapors or very fine aerosols. However,
large aerosol particles or droplets can partially
penetrate the fabric when carried by a strong
wind. In addition, clothing cannot be impregnated
6-16
