Once the chin-thrust is complete, all is well. You have to get the straps neatly arranged atop your auburn permanent and get indoors, but the worst danger is past. The British gas masks have a squat round fitting on the front to allow exhalation, which looks exactly like the snout of a pig, and no woman would be caught dead in such a thing if the models in the gas mask posters were not such paragons of high-caste beauty.