@six5532one Another thought...are you using a baby bottle sterilizer for your Aerobika and nebulizer parts (not tubing). I have 2 Aeroclipse nebulizer cups, use one in the morning which I rinse and put in sterilizer, then I use the other one in the afternoon and rinse, soak in clear dishwashing soap along with the Arikayce nebulizer, rinse and then put in the sterilizer and run it. I bought one that has a drying function so I leave everything in there overnight and put it all away the next morning when the process starts all over. I am careful to make sure I rotate the Aerobikas so the one that did not soak in dw detergent gets used in the evening so I at least soak it every other day. I found this to be so much easier than having to boil water and then have parts constantly sitting on the counter drying.