Safety hard hat is a hat which is used at work place in the outside premises like a construction work place or places where there are chances for workers are prone to slip or fall down, might get injured in their head or be victims of major accidents.  http://workwarehouse.blog.com/2014/04/18/apt-safety-hard-hat-for-rough-workplace-environments/  Safety hard hat is a hat which is used at work place in the outside premises like a construction work place or places where there are chances for workers are prone to slip or fall down, might get injured in their head or be victims of major accidents.