I've been noticing some info exchange here recently about regularly cleaning/replacing nebulizer components, e.g., mouthpieces, tubes and so on. I must have been living dangerously for the three years I've been using a nebulizer; I've never cleaned or replaced the tube . After each use I dismantle and rinse the mouthpiece using soap as well on the surface that actually enters my mouth. I realize that there is moisture in the tube and that it's quite likely that there's a good deal of microbial activity there as well. I've not knowingly suffered any adverse consequences of my neglect. However, now aware of the attention others give to cleanliness I'm considering changing my wayward ways. Tell me though, what's a suitable way to clean the tube? Don