A disposable, expandable/collapsible medication inhalation apparatus for
use with an MDI inhaler includes an elongated housing for receiving a
plume of medication particles ejected by the MDI inhaler, a mouthpiece,
and an inhalation valve disposed between the mouthpiece and the housing. A
pair of foldable side sections are pressed together to expand the
apparatus. An exhalation port in the mouthpiece allows exhalation through
the mouthpiece. A collapsible boot adapter receives a mouthpiece of the
MDI inhaler. The inhalation apparatus is constructed from a single sheet
of foldable sheet material.