The ceramic filter, because it is manufactured in an absorbent, porous material, it is not recommended to any cleaning with any liquids. It is suggested, using a paper clip or similar item, to poke the holes to ensure proper airflow. After normal, usage and wear, the ceramic filter, as well as other filters in the vaporizer will need to be changed. Regularly wipe battery connection clean with a 90% alcohol solution and cotton swab to ensure no oil or residue damages the battery.