Be careful to never touch your diffusion stone with bare hands. The oils from our skin can clog the microscopic pores for pushing gas. Use a tightly knit cloth or rag when handling the stone.
To clean the stone we recommend soaking it in oxygen-based cleaner and either boiling it for 15 minutes, or pushing cleaner through it. Boiling the stone for 15 minutes is also a good way to sanitize your stone and can remove some accidental oils from your hands