hydrasense netirinse 2-in-1 nasal and sinus irrigation kit bayer inc. hydrasense netirinse 2-in-1 nasal & sinus irrigation kit benefits: - choose between 2 irrigation methods, the gentle gravity technique or the more intense squeeze technique. - the netirinse varyflow control collar system allows you to select between 2 levels of flow intensity.- the netirinse comfortseal nasal tip allows the solution to flow freely into the nose with maximum comfort. ingredients: the pre-measured and ready-to-mix salt packets contain: calcium chloride, magnesium chloride, potassium chloride, sodium bicarbonate and sodium chloride.