Donning Steps
The first action when you realize you’re under a CB attack.
What is stop breathing and close your eyes?
During “clear mask,” you seal this part by placing one hand over it.
What is the outlet valve cover assembly (outlet disk valve)?
This is prohibited with CB masks due to risk of serious eye damage/vision loss.
What are contact lenses?
The verbal alarm you must shout.
What is “Gas, Gas, Gas”?
This is the maximum number of seconds allowed to don, clear, and seal your protective mask.
What is 9 seconds?
What you do with your helmet during masking (one correct method).
What is put the helmet between your legs above your knees?
(Also acceptable: hold rifle between legs and place helmet on the muzzle.)
The action used to force contaminated air out during “clear mask.”
What is blow out forcefully?
Filters must be installed before you do this.
What is don the mask?
After shouting the alarm, you must also do this according to your unit SOP.
What is give the appropriate hand-and-arm signal?
These may not be worn with CB masks because they can cause serious eye injury.
What are contact lenses?
What you do with glasses during masking (if applicable).
What is take them off and place them in the helmet?
During “seal mask,” you cover these with your palms.
What are both filter inlet ports?
Filters must be changed out this way to avoid being unable to breathe.
What is one at a time?
You skip donning the separate protective hood when using this system because the hood is built in.
What is JSLIST (lightweight integrated suit technology)?
Filters must be installed before donning, and when changing them you must do it this way to avoid being unable to breathe.
What is one at a time?
Which hand opens the mask carrier?
What is the left hand?
The sign your seal check worked (what should happen to the mask).
What is the mask collapses against your face?
The warning says lack of oxygen for more than this long could lead to injury or death.
What is more than 30 seconds?
These are the special steps for putting on a CVC helmet over the protective mask.
(1) Disconnect boom mic, (2) Connect mask mic to helmet, (3) Spread helmet wide, (4) Tilt forward so first contact is mask forehead surface, (5) Rotate back and down — do not break mask seal
If your helmet falls during donning, the note says you should do this instead of chasing it.
What is continue to mask?
The correct placement of your face to start sealing the mask during donning.
What is place your chin in the chin pocket and press the facepiece tight against your face?
After the mask collapses during the seal check, your next action is to do this.
What is resume breathing?
Before stowing the mask, you must ensure these straps are not positioned below the M61 filters.
What are the cheek straps?
After pulling the hood over your head and shoulders, you do this with the underarm straps.
What is grasp the straps, bring the male end to the female end, fasten, and tighten?
To check the seal, you cover both of these and inhale.
What are the filter inlet ports?