The filling chamber Reducer allows you to load smaller amounts in the Volcano (Easy Valve only). Note: The Crafty and Mighty do not need the reducer, the Capsules fit them perfectly.
Place the Reducer in your Easy Valve filling chamber, then insert the Capsule, and use the vaporizer as you normally would.
If your reducer experiences build-up, you can clean with isopropyl alcohol, or replace with a fresh Capsule as needed.