Apparatus and methods are described for use with a portion of plant material that includes at least one active ingredient. A vaporizing unit includes a heating element configured to heat the plant material, and a sensor configured to detect an indication of airflow rate through the vaporizing unit. Control circuitry is configured to receive an indication of the airflow rate through the vaporizing unit, and, in response thereto, to determine a smoking profile that is desired by the user. The control circuitry drives the heating element to vaporize the active ingredient of the plant material by heating the plant material according to the determined smoking profile. The control circuitry dynamically updates the smoking profile in response to changes in airflow rate over the course of a smoking session. Other applications are also described.

Apparatus and methods are described for use with a portion of plant material that includes at least one active ingredient. A vaporizing unit includes a heating element configured to heat the plant material, and a sensor configured to detect an indication of airflow rate through the vaporizing unit. Control circuitry is configured to receive an indication of the airflow rate through the vaporizing unit, and, in response thereto, to determine a smoking profile that is desired by the user. The control circuitry drives the heating element to vaporize the active ingredient of the plant material by heating the plant material according to the determined smoking profile. The control circuitry dynamically updates the smoking profile in response to changes in airflow rate over the course of a smoking session. Other applications are also described.

A vaporizer device includes an inhalation nozzle, a container containing the vaporizable material; and an atomizer arranged for carrying out a single continual atomization process for producing an inhalable vapor. A dosage reminder system for the vaporizer device includes a control module, a reminder determination unit configured for detecting a parameter during the single continual atomization process of the atomizer and a reminder element arranged for providing a reminder effect under control of the control module when the parameter reaches to a predetermined threshold.

A system includes a converter configured to electrically couple to a power source and to a heating element of a vaporizer atomizer. The converter can be further configured to receive a first voltage from the power source and provide a second voltage to the heating element. The converter can be a direct-current to direct-current converter. A power monitor configured to electrically couple to the heating element, measure a current through the heating element, measure a voltage over the heating element, calculate a power and/or resistance, and output a control signal to the converter. The converter can be configured to be controlled by the control signal to vary the second voltage to maintain a target power or a target temperature over the heating element. Related apparatus, systems, techniques and articles are also described.

An electronic vapor device is disclosed comprising a vapor outlet, a first container for storing a first vaporizable material, wherein the first container is permanently integrated into the electronic vapor device, a second container for storing a second vaporizable material, wherein the second container is removable from the electronic vapor device, a docking bay configured to receive the second container, wherein the second container is removed from or inserted into the docking bay through a door, and a vaporizer component configured for vaporizing the first vaporizable material or the second vaporizable material to generate a vapor and for providing the vapor to the vapor outlet.

Provided herein are embodiments related to metered dose inhalers and formulations for such inhalers. In some embodiments, the inhalers are configured so as to allow a more comfortable experience for the subject receiving the formulation. In some embodiments, the formulation comprises various ingredients, such as terpenes and/or waxes, which can further enhance the level of comfort for the subject receiving the formulation.

A breathing assistance apparatus has a pressurised gases source featuring a lightweight impeller with a plastic shaft. The impeller is shroudless. The plastic shaft is supported within the stator by a bearing structure. A resilient motor mount couples the status and the housing and provide compliance and/or damping for the motor.

A wakefulness maintaining apparatus includes: an awakening stimulation controller that controls an awakening stimulation device to generate a cold air wind for maintaining a wakeful state of a target person; and a characteristic feature specification unit that specifies a characteristic feature of the target person. The awakening stimulation controller changes an air wind stimulation condition based on the characteristic feature of the target person specified by the characteristic feature specification unit. The air wind stimulation condition includes at least one of a region of the target person which the cold air wind generated from the awakening stimulation device hits, an air volume of the cold air wind, a temperature of the cold air wind, and an air blowing period of the cold air wind.

A blanket for venipuncture or cannulation on a patient's hand using forced air warming, including a non-air permeable outer layer and an air permeable inner layer the outer layer and inner layer defined to form an inflatable chamber, the inflatable chamber allowing egress of continuous forced warming air on the patient's hand; wherein in use, continuous forced warming air dilates and allows for visual identification of the patient's hand veins.

A hand-held or wearable device for cooling tissue of an eye of a patient is disclosed. In one aspect, the device includes a reservoir having fluid therein and a support connected to the reservoir and configured to be positioned on a face of the patient. The device also includes a nozzle positioned proximate to the support and fluidically connected to the reservoir, the nozzle configured to pass the fluid from the reservoir onto a surface of the eye. The device further includes a cooling element configured to cool the fluid from the reservoir such that it exits the nozzle at a temperature of between 100 C. and 15 C. The device further includes an ultrasonic vibrator positioned near the nozzle and configured to generate mist from at least part of the fluid.