VENTILATION SYSTEM FOR A PROTECTIVE SUIT

摘要

A ventilation system for a protective suit (2) comprising the protective suit (2) to cover the user's body (1), a face piece (11) to cover at least the nose or mouth of the user (1), a filter (10) and pump (7) unit to draw air from outside the protective suit (2) and to supply breathing air to a space within the face piece (11) and ventilating air to the interior of the protective suit(2), where, the breathing air is supplied such that the pressure inside the face piece (11) does not drop below the pressure acting on the outside of the face piece (11) during the breathing cycle.