This article is about a concept, not a mask.
This article has been written about something that is not a specific model of mask, but a concept relating to CBRN warfare or the engineering behind gas masks.
|CBRN||Chemical, Biological, Radiological, Nuclear - An update on NBC, putting emphasis on the increased focus on so-called "dirty bombs"|
|Dead space||Space inside a mask in which air flows both ways|
|Orinasal cup||A valved cup contained inside a mask covering the nose and mouth, to prevent fogging, and to reduce dead space|
|Respirator||A device worn on the face to protect the user against inhalation of contaminants|
|Voice diaphragm||A thin membrane on a mask which vibrates to better project a user's voice|