呼吸防护用品是防止缺氧空气和有毒、有害物质被吸入呼吸器官时对人体造成伤害的个人防护装备，是预防尘肺和职业病的重要护具，常用的有防尘口罩和防毒面具。防尘口罩，是从事和接触粉尘的作业人员必不可少的防护用品。防尘口罩只能防尘，防毒面具可以防护有毒气体、吸附气味，且防护性能更强，全面罩防毒面具可以防护呼吸系统、面部、眼睛等等。 

Respiratory protective equipment is personal protective equipment to prevent damage to the human body when oxygen-deficient air and toxic and harmful substances are inhaled into the respiratory organs. It is an important protective gear to prevent pneumoconiosis and occupational diseases. Dust masks and gas masks are commonly used. Dust masks are indispensable protective equipment for workers engaged in and exposed to dust. Dust masks can only prevent dust. Gas masks can protect toxic gases, absorb odors, and have stronger protective performance. Full-face gas masks can protect the respiratory system, face, eyes, and so on.