Until they discontinued it, I used the Philips Inspire Go. Since that's gone, I'm thinking seriously about the Pari eflow (ghastly expensive) but when I think about what college cost and that I need it for the rest of my life, it's tempting.
https://nebology.com/products/pari-erapid-nebulizer-system-with-eflow-technology

I also saw the Aura Portable at Save Rite Medical online.
https://www.saveritemedical.com/products/aura-portable-aerosol-nebulizer-52mm-x-52-5mm-x-126mm?_pos=3&_sid=5a6d5062a&_ss=r

There's a compressor based by Pari but I've read it v e r y slow.
https://www.saveritemedical.com/products/trek-s-portable-compressor-nebulizer-aerosol-system-standard?_pos=1&_sid=08703d2bd&_ss=r

I've also read that the mesh handheld portables don't deliver saline deep enough in the lungs so you might not get the same benefit as a compressor based. Apparently, the Pari eflow is an exception, people love it.

I use a Pari trek s at home and for travel. It has been reliable. I nebulize 3 ml in around 15 minutes. One thing I would say is I do NOT recommend the Omron portable mesh device. Highly unreliable. It had a mind of its own. And the cleaning was rather fiddly as well. Certainly not what you need when traveling.

Thank you. I bought avexmed portable mesh nebuluzer just to have something in my purse. It was ranked number one as most often purchased but well it depends who does the survey. It is battery and usb powered. But I will buy pari trek s by you recommendation and by the rating. At home I use omron with aeroeclipse but it about 3 lb. So thank you again for responding because when you look online there are so many and all are “the best” according to a seller.

I too, am looking at the Pari portable.
My home nebulizer is a Pari. It was the most expensive, but has lasted about 12 years. I have replaced the tubes and mouthpieces.
Thanks for the other suggestions ..will do a little more research.

Thank you Irene . Your answer is what I needed. I didn’t know what aerobika is for and when to use it before.You really helped.