What are the two holes on the side of my device? June 14, 2021 15:26 Updated The two holes on the side of your device are used for airflow. Please do not block the holes when using the device. Related articles Why does my device flash 3 times when being charged? Is there a possibility of overcharging the battery on my STLTH? I put my pod in my device but it is producing no vapour or barely any at all, what is the issue? How long does the device battery last? How do I dispose of my STLTH device?