該產品是新一代大容量正壓氧氣呼吸器，人體呼吸與外界，可以防止外界有毒有害氣體吸 入。可廣泛適用于礦山、化工等行業在發生有毒有害氣體及缺氧時，進行搶險和幫助遇險人員逃生時使用

The product is a new generation of large capacity of positive pressure oxygen respirator. Human respiratory isolation, can prevent toxic gas inhalation. When the mining, chemical and other industries in the event of poisonous gas or hypoxia, for rescue or help people in danger to escape using