Inhalation device with consumption metering including one or more airflow sensors

An inhalation device for inhaling a vaporized substance comprising:

• an inlet;
• an outlet;
• a channel positioned between the inlet and outlet;
• an atomizer positioned between the inlet and the outlet and configured to vaporize an unvaporized substance into a vaporized substance, wherein the vaporized substance flows downstream from the atomizer to the outlet via the channel;
• an airflow sensor positioned upstream of the flow of the vaporized substance,
• wherein the airflow sensor is configured to acquire information on the flow of air from the inlet.

An inhalation device for inhaling a vaporized substance comprising:

• a chamber comprising:
• an inlet;
• a first channel;
• an airflow sensor positioned in the first channel;
• a vapor sensing unit comprising:
• an outlet;
• a second channel;
• a light signal device, wherein the light signal device emits light;
• a light sensor, wherein the light sensor senses the light from the light signal device;
• an atomizer configured to vaporize an unvaporized substance into a vaporized substance, the atomizer positioned between the first and second channel;
• wherein the light signal device and light sensor are positioned in the second channel such that the vaporized substance can flow from the atomizer and past the sensor and the light signal device to the outlet;
• wherein the airflow sensor is configured to acquire information on the flow of air from the inlet;
• and
• wherein the vapor sensing unit and the atomizer are detachably coupled to the chamber.