Gaseous constituent supply device

A gaseous constituent supply device for supplying an air vortex ring containing a gaseous constituent, the device comprising:

• a first chamber holding the gaseous constituent therein, and having an opening, through which air containing the gaseous constituent is blown;
• a compressing portion for compressing air in the first chamber so as to blow air from the first chamber through the opening;
• a second chamber communicating with the first chamber through the opening, and
• a partition wall partitioning the first chamber and the second chamber from each other, wherein
• the second chamber holds the gaseous constituent therein, and has an emitting outlet provided opposite to the opening of the first chamber,
• the second chamber generates the air vortex ring by air blown from the first chamber through the opening while taking in the gaseous constituent,
• the second chamber emits the generated air vortex ring through the emitting outlet
• the opening of the first chamber is provided in the partition wall and is open to the second chamber,
• the emitting outlet of the second chamber is positioned opposite from the opening of the first chamber,
• the second chamber is a space defined between the partition wall and the emitting outlet;
• the opening of the first chamber has a first round shape,
• the emitting outlet of the second chamber has a second round shape, and
• the first round shape and the second round shape have approximately the same axis which is perpendicular to the partition wall.