The Sinus Rinse Bottle system features a specially-developed saline solution containing xylitol to help soothe, moisturise, and cleanse your sinuses. Sinus Irrigation has been used to clear out nasal and sinus passages for centuries. They use a gentle, low pressure positive flow to run saline through the passageways, clearing out any bacteria, allergens, or other harmful contaminants. Now, you can increase the effectiveness with the inclusion of xylitol. The Rinse Sachets allow the patients to vary the concentration of Xylitol in their Nasal Rinse system up to a maximum of 66% Xylitol.