@opacity Thank you for reaching out to us! Here is a very helpful link on how to clean the mouthpiece: https://youtu.be/7oDNLDFqLbY,that may answer all your questions. You are also on the right track for using the brush every time you finish your AirVape session. We also recommend replacing the screens in the chamber and you may use a tweezer or a needle to remove it. If you have any questions or concerns, feel free to contact us at cs@airvapeusa.com. Have a great day ahead!