Described herein are systems, devices, and methods for generating and delivering an inhalable vapor or aerosol. In some embodiments, the systems, devices, and methods described herein are used to generate and deliver a vapor or aerosol containing tobacco for use in, for example, traditional smoking or, for example, to deliver a smoking cessation therapy. In some embodiments, the systems, devices, and methods described herein are used for generating and delivering a vapor or aerosol comprising a medicament. For example, in some embodiments, the systems, devices, and methods described herein are used to deliver an inhalable medicament to the lungs of a patient.