Methods and devices for modulating air flow in delivery devices

A device for generating a condensation aerosol, the device comprising:

• a. a vaporization chamber, wherein the vaporization chamber has an upstream first inlet and a downstream outlet;
• b. a heater element in the vaporization chamber, wherein the heater element is located between the upstream first inlet and the downstream outlet;
• c. an airflow path in fluid communication with the vaporization chamber, wherein the airflow path comprises a second inlet configured to permit a substantially laminar flow of air into the airflow path, wherein the second inlet is downstream of the heater element;
• and
• d. a modulating apparatus for modulating air flow in the vaporization chamber, wherein modulation of air flow in the vaporization chamber modifies a particle size of a condensation aerosol produced in the vaporization chamber.

A method for modulating condensation aerosol particle size produced from a condensation aerosol generating device, the method comprising:

• a. providing a condensation aerosol generating device comprising
• i. a vaporization chamber, wherein the vaporization chamber has an upstream first inlet and a downstream outlet;
• ii. a heater element in the vaporization chamber, wherein the heater element is located between the upstream first inlet and the downstream outlet;
• and
• iii. an airflow path in fluid communication with the vaporization chamber, wherein the airflow path comprises a second inlet configured to permit a substantially laminar flow of air into the airflow path, wherein the second inlet is downstream of the heater element;
• and
• b. adjusting an apparatus for modulating air flow in the vaporization chamber, wherein modulation of air flow in the vaporization chamber modifies a particle size of a condensation aerosol produced in the vaporization chamber.

A device for generating a condensation aerosol, the device comprising:

• a. a vaporization chamber configured to generate a condensation aerosol, wherein the vaporization chamber has an upstream inlet and a downstream outlet;
• b. a heater element in the vaporization chamber, wherein the heater element is located between the upstream inlet and the downstream outlet;
• c. a flow sensor;
• and
• d. an apparatus to receive an inhalation profile of a user of the device, wherein the device is configured to modify a characteristic of the device based on the inhalation profile.