The glass mouthpiece of the Linx Gaia produces some of the finest vapours known to mankind. But glass is glass. Thankfully, you don't have to throw away your Gaia in case of breakage. Just get a nice replacement mouthpiece.
To keep the taste and airflow at an optimum you should clean the mouthpiece once in a while. Carefully use the Gaia magnetic tool (or a screwdriver) to detach the filter part from the glass part. Use a q-tip to clean the parts.