Ключевые слова: air, apocalypse, background, barrel, barrelroll, black, cask, chemical, concept, danger, dangerous, dirty, disaster, ecology, environment, explosion, fear, gas, gas mask, gashelmet, gasmask, hazard, health, industrial, inhaler, male, man, mask, military, muzzle, nuclear, person, poison mask, pollution, portrait, protection, protective, radiation, radioactive, respirator, rubber, safety, security, smoke, squeeze box, squeezebox, tearmask, toxic, tun,