I got this link from the CCF website about how to/not to clean your nebs, and to stop the spread of infection (this is in PFD form):
<a target=_blank class=ftalternatingbarlinklarge href="http://www.cff.org/UploadedFiles/living_with_cf/Files/Respiratory%20--%20Stopping%20the%20Spread%20of%20Germs.pdf
">http://www.cff.org/UploadedFil...read%20of%20Germs.pdf
</a>
Here are ways to clean your neb cups:
Clean with hot soapy water using a paper towel, then rinse with water. Then follow with one of the following ways to clean your neb cups:
1. Boil for 5 minutes;
2. Microwave in water for 5 minutes;
3. Dishwasher if the water is hotter then 158 F for 30 minutes;
4. Soaking in a solution of 1 part household bleach, and 50 parts water for 3 minutes;
5. Soaking in 70% Isopropyl alcohol for 5 minutes or;
6. Soaking in 3% Hydrogen Peroxide for 30 minutes
If you decide to disinfect with the peroxide or alcohol, make sure that you rinse your nebs afterwards with STERILE water. DO NOT USE WATER FROM THE TAP, DISTILLED WATER, OR BOTTLED WATER. To make sterile water, simply let water boil for 5 minutes before putting your neb cups in.
DO NOT USE VINEGAR. Vinegar is not strong enough to kill bacteria.
The resusable nebs such as PARI LC Plus can be reused for up to 6 months and then need to be replaced. They can be handwashed, or washed in a dishwasher. Cleaning should take place after everyuse to prevent buildup. Plus, not cleaning your nebs after every use causes build up which hampers the effectiveness of your treatments, or increase the risk of infection. Disposable neb cups like Acorn II need to be replaced after every use.
Tubing does not need to be washed, as air is continually pushed through during treatment, so after every treatment, simply let the compressor run for a few minutes to get any trapped moisture out.
I don't wash my nebs daily, as I have 3 neb cups that I alternate. When I'm down to my last one, that's when I wash all the other ones.