Patent Number: 6,837,239

Title: Ventilation system for a protective suit

Abstract: The present invention relates to a ventilation system for a protective suit for use in hazardous environments. In a further aspect it concerns the protective suit itself. An air purifying respirator draws air from outside the protective suit through a filter, supplies filtered breathing air via a breathing hose to a space within the face piece, and supplies filtered ventilating air via a ventilating hose to the interior of the protective suit. A ventilation valve in the ventilating hose automatically closes only during periods of high breathing demand to counter a pressure drop inside the face piece.

Inventors: Beizndtsson; Goran B. C. (New South Wales, AU), Backman; Lennart (Varnamo, SE)

Assignee: Safety Equipment Australia Pty Ltd.

International Classification: A62B 17/00 (20060101); A62B 007/10 ()

Expiration Date: 1/04/02017