Our addition to the traditional hard hat is a plastic wrap holder attached to the brim. The plastic wrap looks a little silly, but it is the best protection when you spray concrete overhead. Traditionally, shotcrete is sprayed with nothing more than a pair of safety glasses. When you spray overhead, you get rebound onto the glasses that drops visibility down to zero.
With plastic wrap, you simply pull more down as needed. It keeps your face and your safety glasses clean. We recommend that you buy Glad brand Handiwrap. It seems to work best for this device.