hard hat

US /ˈhɑːrd hæt/
UK /ˈhɑːrd hæt/
"hard hat" picture
1.

Schutzhelm, Bauhelm

a helmet made of hard material, worn by workers to protect their heads from falling objects or blows

:
All construction workers must wear a hard hat on site.
Alle Bauarbeiter müssen auf der Baustelle einen Schutzhelm tragen.
He put on his hard hat before entering the mine.
Er setzte seinen Schutzhelm auf, bevor er die Mine betrat.