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Respiratory Apparatuses And Protective Means
(AREA)
Abstract
Respiratory protector by air stream that is constituted essentially by an adjustable support around the head, and to which a tube has been fixed, so that it is surrounding the forehead connected to a compressed air feeder and provided with a row of holes that they direct the air flow downward forming a curtain parallel to the user's face. (Machine-translation by Google Translate, not legally binding)