Cleaning the mouthpiece is fairly easy. Every time you finish using your iShred vaporizer, make sure to use a cleaning brush to scrub off the residual dry herbs. You want to make sure your filter screen is cleaned off. Otherwise, there will be more and more buildup and the airflow will be affected.
Cleaning the heating chamber is fairly easy. After you've finished vaping your dry herbs, take off the mouthpiece. Then stir the dry herbs around with your dab tool. After that, you can turn the vaporizer upside down and all of the dry herbs should fall out. Once everything is out, you can use a cleaning brush to scrub off any remaining residue. Then use a Q-TIP or cotton ball to clean the rest.