The device comprises an airway tube and a mask attached to the airway tube.

The present air tube assembly includes a planar resistive element (22) which is disposed in the hollow space of an air tube between a first tubular segment (18) and a second tubular segment (20) for use with a spirometer.

The mist feed tube (5) has a double tube structure comprising an air tube (7) in which air flows, and an oil tube (6) which extends in the air tube (7) and in which the oil flows.

Ports of the hollow air tube (21) are act as inlets (3) of the air tube truss (2).

The back tube has an orifice (20) for allowing air from the air tube to enter inside the back tube.

An air tube headset is a pair of earphones coupled to a microphone with an ‘air tube’ component.

After a predetermined time, the air tube is closed, which terminates flow of the liquid through the liquid tube.

The mask is connected to the airway tube for gaseous communication between the tube and the mask.

A turbine power unit for a cutting tool, the power unit including a plastic air tube; a spindle configured to be installed within the air tube.

The pressure sensor (54) monitors the internal pressure of the air tube (44).

Air is pumped into the air tube (4) beneath the blades by the air pump (3) and is delivered to the water.

Purifying air which contains ozone is supplied to the venturi tube (58) via an air tube (61).

An air tube headset has a hollow flexible air tube that replaces the wire from your phone to the small earpiece.

A hole extends through the anterior surface and the sealing member and communicates through an air passage with the distal end of the air tube.

A generator includes a turbine with blades (2), a reservoir (7), an air pump (3), an air tube (4) and a dynamo (5).