The Ambu Disposable PEEP valve has been test in MR conditions. It can be used in MR surrounding up to 3 Tesla. Ambu PEEP Valves have been designed to provide unique resistance characteristics when used with manual resuscitators, ventilators, anaesthesia machines (where specified by the manufacturer) and CPAP systems. Ambu PEEP Valves can be fitted directly to the patient valve of any original Ambu resuscitator without additional connectors. The Reusable Ambu PEEP valves can be repeatedly autoclaved at 134°Celsius.