What are the two holes in the safety helmet?
First, it can ventilate and heat the air, and there is no muggy feeling on it.
The function of ventilationIf you don't have ventilation, you'll be sweaty if you wear a safety helmet for too long,It's uncomfortable, so leave 2 small holes for ventilationSo don't care too much about himThe protective effect is still there.
The two is a safety helmet with air holes is to prevent head guard head collision attack and falling objects, the shell buffer to head impact on the buffer pressure from falling objects to a minimum, can degrade the pressure and impact force.
