Hi! I was on a two-week (Viking) river cruise in France this past June and brought along my Pari Trek-S, Aerobika, and a small bottle of Dawn detergent. I asked for distilled water to be delivered daily and washed the various parts in the ice bucket, which was just the right size. Every four or so days I disinfected with hydrogen peroxide, which I bought when we first flew into Paris. The whole thing turned out to be easy-peasy. Maybe call your tour person ahead of time and ask if they can provide you with distilled water and if there's a microwave on board you can use? We had a wonderful time, and I hope you do too!

I travel with a drizzle pot. Foldable silicone pot with a heating element built in. Boils quickly. Super compact. Just enough capacity for pari or ombra nebulizer cup, aerobika and salbutamol puffer sleeve. Source distilled water from ship or first store you can get to. Drizzle pot comes with different plugs so works in Europe and NA. Travel with multiple sets equipment if you can. So important to keep clearing every day. Suspect your Respirologist would highly reco staying on your medication. It’s a pain but might be best for you in the long run. Sorry just replying now. I learned about drizzle pots here and have been eternally grateful for the advice. So many great tips from our community here. All the best! D