You can make a Philips cough assist type device which uses abrupt pressure changes to expel fluid. Need to be super careful with these you can do real damage if

You can make a Philips cough assist type device which uses abrupt pressure changes to expel fluid. Need to be super careful with these you can do real damage if not used correctly. Those are also nowhere near as effective as the real deal i.e. intubation where you stick a tube down the lungs that sucks out fluid and pushes in air.