The maintenance man who'd just saved New York's leaders takes off his own safety mask and gives it to the Mayor.

那位拯救纽约领导层的维修人员除下自己的防护面罩交给市长。

This person wants to be free from harm, so she used her safety mask. As a result, she follows job safety measures.

这个人想要免受伤害，所以她戴上了安全面具。因此，她采取了工作安全措施。