呼吸器有滤气式和供气式两种基本类型。现将呼吸器在美国工业上的应用介绍如下。呼吸器是以遮盖鼻和嘴来限制污浊空气进入肺部的保护用具,按遮盖形式不同可将其分为5种: (1)一次性用呼吸器; (2)1/4罩式呼吸器; (3)半罩式呼吸器; (4)全罩式呼吸器; (5)保护头盔或服式套装。每种呼吸器都有其优点,但应注意各自使用中的特殊限制。 Respirators have two basic types of gas filter and gas supply. Now respirator in the United States industrial applications are described below. Respirator is to cover the nose and mouth to limit the dirty air into the lung protection equipment, according to different forms of cover can be divided into five kinds: (1) disposable respirator; (2) 1/4 mask respirator ; (3) Half-mask respirators; (4) Full-mask respirators; (5) Protective helmets or suits. Each respirator has its advantages, but special precautions should be taken for each respirator.