Scientists at Israel’s Technion Institute built a 3D model of the lungs of a premature baby. They discovered that in standard respirators for babies an air jet could cause damage to the infant. They have now recommended reconfiguring the air flow, potentially saving many young lives.
https://unitedwithisrael.org/preemies-breathe-easier-with-israeli-breakthrough/
https://www.technion.ac.il/en/2020/01/innovation-for-infant-assisted-ventilation/