Manual resuscitation bag with improved PEP exhaust valve

A manual resuscitation bag (1) comprising:

• a deformable bag (2) comprising a gas inlet (21) and a gas outlet (22),
• a first conduit element (3) fluidly connected to the gas inlet (21) of the deformable bag (2), and
• a first PEP exhaust valve (4) arranged in the first conduit element (3) and fluidly communicating with the ambient atmosphere, the first PEP exhaust valve (4) configured for venting gas to the atmosphere when the gas pressure, into the first conduit element (3), exceeds a given pressure threshold, said first PEP exhaust valve (4) comprising a valve body (5) and a calibration mechanism (6, 12;
• 7-10) for setting a desired pressure threshold,
• characterized in that the calibration mechanism (6, 12;
• 7-10) for setting the pressure threshold comprises:
• a rotatable member (6), actuatable by a user, arranged on the valve body (5) and cooperating with a pressure adjusting device (7-10) arranged into the valve body (5), and
• a support member (12) comprising several markings (11) corresponding to several settable pressure values, arranged between the rotatable member (6) and the valve body (5),
• and wherein the rotatable member (6) further comprises a reading window (60) that can be positioned so as to face one of the markings (11), when the user actuates the rotatable member (6), thereby selecting a pressure threshold corresponding to one of the pressure values indicated by the markings (11) that is readable through said reading window (60).