Should I upgrade my system? How long do I keep the supplies?

Hi Rockinrit03 and thanks for your post. Although we cannot provide medical advice or diagnostics over the internet (for your own safety), your concerns certainly warrant a reply.

If your table top nebulizer system works well, and you derive the benefit you expect (and have experienced over the years) from your therapy, it may not be necessary to 'upgrade' it. However, you may want to investigate further by discussing this with your physician as to what (s)he recommends. The supplies you have that you've mentioned, should be changed on a regular basis and/or if they've become worn. Most of the parts can, in fact, be cleaned using a diluted vinegar solution for disinfection. You may want to discuss this with the respiratory therapist who is affiliated with your equipment supplier. Please do check back and let us know how you're doing.
All the best,
Leon (site moderator)

Thanks for the help Leon! I will discuss with my allergist next time I go

Your old system may not have the flexibility of multiple electrical currents. If you plan to travel outside the US be sure your machine can handle other currents. I have 3 machines: an old workhorse machine for home use. it's large, heavy, and hard to pack, so it's for home use only. Machine #2 Is for camping or when we go on car trips and I want to save time and take my treatment in the car. This machine works on a rechargeable battery pack or with a car adapter plug. Machine #3 is my travel outside US machine; the machine and it's electrical cord can accept various electrical currents.

About every 5 years I check to see what is new. And I am certainly glad I do. The last machine I bought for travel was under $30 and weighed about 6 oz. What a breeze to pack! Just US current but still a great deal!