Complex sentence: Once the user inhales, the airflow passes through a pressure sensor which activates the heating element that atomizes the liquid solution within the cartridge to a temperature of about 55 ° C within the e-cigarette to create an aerosolized vapor.
Split into simpler sentences: Once the user inhales, the airflow passes through a pressure sensor which activates the heating element that atomizes the liquid solution inside the cartridge into vapor. The e-liquid is heated to a temperature of about 55 ° C within the e-cigarette to create an aerosolized vapor.