The function of respiratory protective equipment
Respiratory protective equipment is an important protective device for preventing pneumoconiosis and occupational diseases, as well as for preventing the inhalation of harmful substances such as oxygen deficient air and dust toxins into the respiratory tract. It can be divided into three categories based on its purpose: dust prevention, gas prevention, and oxygen supply. According to its principle of action, it can be divided into two categories: filtration type and isolation type.
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