Replacement Cup & Mesh for Ultrasonic Mesh Nebuliser How to set up the medication cup Set up the medication cup: Align the buckle on the back of the medication cup with the trenches on the main unit and insert the medication cup. Check to ensure that the buckle is aligned and inserted correctly. Important Clean all parts of your portable nebulizer before use, after each use and after extended storage. Do NOT poke the mesh with finger, cotton swab or any object. Do NOT clean parts in a dishwasher. Do NOT use microwave to dry any parts.