#$%^&*AU2013202645B120130905.pdf#####H: ljr Interwoven NRPortbl DCC LJR 5017462 1.doc-5/04/2013 -27 ABSTRACT Apparatus for providing oscillatory positive expiratory pressure therapy to a subject, the apparatus including: a hollow container defining an internal volume that contains a liquid in use; a fluid conduit having an inlet and an outlet in fluid communication with the internal volume, the outlet being provided at a position proximate to a base of the container; and a one-way exhalation valve configured to permit fluid flow into the internal volume via the fluid conduit and to substantially prevent fluid flow out of the internal volume via the fluid conduit, so that in use the subject can exhale into the liquid via the inlet. Fig. 1A