THE ULLO WINE PURIFIER : A true advancement, the Ullo Wine Filter instantly restores the natural taste of wine. The purification power of Selective Sulfite Capture technology combines with an adjustable wine aerator in a single, intuitive design that respects the simplicity and ritual of wine. THE ULLO ADVANTAGE : Sulfites are artificial chemicals added to wine as a preservative and are no longer needed once the bottle is opened. Ullo purifies wine using a food-grade polymer to selectively remove sulfites while allowing other compounds in wine to flow through unaffected. Through Selective Sulfite Capture, sulfites are filtered to reveal more of the wine's natural flavors and aromas. Ullo's patented filters remove sulfites and purifies 1 standard (750 Milliliter) bottle of wine. ULLO AERATION : Because some wines prefer to be aerated, Ullo was designed to purify and aerate wine in the same pour. With a simple twist, you can opt to aerate your wine if desired. ULLO FOR ANY OCCASION : The Ullo purifier works comfortably on top of a variety of wine glasses, as well as the beautifully crafted Ullo carafe and decanter. When serving, Ullo can be returned to its base designed to capture any unruly drips.