How do I clear a CBRN mask for an unconscious casualty? | – Leader Development for Army Professionals

How do I clear a CBRN mask for an unconscious casualty?

I was asked a question recently and can't find the answer. If you come across a casualty who is unconscious in a CBRN environment, how do you clear their mask?

Provided there is no severe trauma to the chest or stomach area, place the casualty on their back. Place your hands over the mask outlet valves and sit on their stomach. This will force the air out of their lungs and through the mask causing it to clear.  You need to make sure the mask is properly sealed before attempting to clear it.

Show Full Article
posted on 03/17/2011 under Q&A
Mark is a Retired Command Sergeant Major with 26 years of military leadership experience. He held 3 military occupational specialties (Field Artillery, Nuclear Weapons Tech, and Ammunition Ordnance). Mark is one of the leading military authors in the fields of leadership, counseling, and training.

Disclaimer: Though all content posted on is reviewed by our qualified subject matter experts, you should not make decisions based solely on the information contained in this post. Use information from multiple sources when making important professional decisions. This is not an official government website.

You might be interested in…

Leave a Comment

We will never publish or sell your email address, nor will we ever send you information you have not requested.