I use it for many years, and since then i dont have sinus serious problems. I use it daily to clean my sinus, or i use it when i feel i ll have a cold. Before using it my sinus were so full that once my ears broke and then i had pneumonia. WIth netipot i can swim every day in the salt sea even if i leave 800 km away from the sea. I m buying it because i broke the other one from my fault.
Its a bit small, a glass of 220ml has to be pored twice. Other than that its great, saved me so many times in the winter or when i'm feeling a bit on the low side. I will purchase this more since its a great gift for my friends and family, its made out of porcelain and not plastic and the price is great.