The Prelude offers a new approach to internal cleansing, allowing for single or multiple low-volume flushes. This method is not possible with traditional enemas, as they drain too quickly and fill the bulb when released. The Prelude addresses this issue with a special one-way valve that slows down the flow of liquid and prevents the enema from filling with air. The valve also ensures hygienic operation by preventing backflow of liquid into the bulb. The Prelude makes this possible, providing a simpler, faster, and more comfortable cleansing experience.