A connector (100) for a respiratory mask (10) including a first end portion (110) removably connected to the respiratory mask, a second end portion (120)removably connectable to a non-invasive ventilation (NIV) tube (40), and an elbow portion (130) disposed between the first and second end portions. The elbow portion includes a port (140) for removably receiving an endotracheal tube (50), the port including a removable seal (450) that maintains non-invasive ventilation during insertion of the endotracheal tube into the respiratory mask through the port. At least one of the first end section, the second end section and the port are openable for removal of the connector from around the inserted endotracheal tube.
