Personal vaporizing unit

A vaporizer, comprising:

• a housing;
• a reservoir disposed within the housing, a gap between an exterior surface of the reservoir and an interior surface of the housing defining a vapor passageway, the reservoir configured to contain a precursor at ambient temperatures and to release the precursor via a precursor passageway when the vaporizer is being operated;
• an entrainment passageway in communication with the precursor passageway to receive released precursor from the precursor passageway, entrain the released precursor in an airflow generated by a user, and at least partially vaporize the released precursor;
• and
• an infrared radiation source to, when activated, heat the released precursor and the airflow to form a vapor from the released precursor.

A cartridge for a vaporizer, comprising:

• a reservoir to contain a vapor precursor composition, the reservoir configured to be disposed within a housing of the vaporizer thereby forming a vapor passageway between a first exterior surface of the reservoir and an interior surface of the housing the reservoir further configured to contain the vapor precursor composition at ambient temperatures and to release the vapor precursor composition via a precursor passageway when the vaporizer is being operated;
• the vaporizer configured to form an entrainment passageway using a second exterior surface of the reservoir that includes the precursor passageway, the entrainment passageway in communication with the precursor passageway to receive released vapor precursor composition from the precursor passageway, entrain the released vapor precursor composition in an airflow generated by a user, and at least partially vaporize the released vapor precursor composition;
• and
• the vaporizer including an infrared radiation source to, when activated, heat the released vapor precursor composition and the airflow to form a vapor from the released vapor precursor composition.