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Slide 18


    Title: Classes of Atmosphere-Supplying Respirators
    Type: Text Slide

    • Continuous Flow. Provides a continuous flow of breathing air to the respiratory inlet covering
    • Demand. Admits breathing air to the facepiece only when a negative pressure is created inside the facepiece by inhalation
    • Pressure Demand. Admits breathing air to the facepiece when the positive pressure inside the facepiece is reduced by inhalation