Hi dpaula, thank you so much for responding! My dad is finding that using his nebulizer with 7% sodium chloride is helping him cough up the stuck mucus, but hoping that adding the Aerobika to his Aeroeclipse XL BAN might also help him draw up some fluids he currently battles in his right lung - pneumonia. He may also find it helpful to use separately so he decided to wait a few days for the version with manometer to arrive in a few days since he believes the targeted range will help him exhale properly and hopefully maximize the device’s potential. Thank you again for your feedback, we greatly appreciate you and others here!