@becleartoday Thank you Linda! Thanks to this forum I learned I can connect my Aerobika to my nebulizer to cut down time (and it helps me not skip that step). The huff coughing works pretty well for me. I watched a You Tube video from respiratory therapist on how to do it properly. I just did another sputum test and will have to wait for results. I took my Aerobika with me. Hoping they got enough to test. I’m happy I don’t have much to cough up!