Research suggests, when forced to wear a gas mask, “Firstly, the wearer feels isolated and/or dehumanized. Secondly, those viewing the person wearing the gas mask may see the person as anonymous and (potentially) non-human.”
What does a gas mask make you feel?
Taken from an article at https://drmarkgriffiths.wordpress.com/2013/04/20/breath-duties-a-brief-look-at-gas-mask-fetishism/