The present invention relates to an inhalation device for use with an inhaler
(5) comprising a dispersion chamber (18) for fluid communication
with the inhaler (5) and a suction chamber (19) in fluid communication
with the dispersion chamber (18). The suction chamber (19) is constructed
to enable the internal volume of the suction chamber (19) to be increased
during use thereby producing a negative pressure in the dispersion chamber (18).
In this way, the substance to be inhaled can be drawn from the inhaler into the
dispersion chamber (18) for subsequent inhalation.
