Air dry the Sinus Rinse bottle, cap, and tube on a clean paper towel, a lint free towel, or use NeilMed NasaDOCK or NasaDOCK plus (sold separately) to store the bottle, cap and tube. It is very important to keep these devices clean and free from any contamination. Replace the bottle every 3 months.
https://www.amazon.com/NeilMed-Natural-Relief-Premixed-Packets/dp/B00TU5P33K