Breathing exercise apparatus

A breathing exercise apparatus comprising:

• a housing comprising a mouthpiece having an opening and a chamber having a vent open to the atmosphere, the opening in the mouthpiece being in fluid communication with the vent allowing a user to breathe through the chamber,
• a stationary member positioned in the chamber between the opening in the mouthpiece and the vent, the stationary member having a plurality of apertures,
• a movable member positioned in the chamber adjacent the first member, the movable member having a plurality of apertures, and
• an actuator coupled to the movable member and operable to move the movable member with respect to the stationary member such that the apertures in the movable member intermittently align with the apertures in the stationary member.

A breathing therapy apparatus comprising:

• a chamber having a vent open to the atmosphere,
• a mouthpiece having an opening which is in fluid communication with the vent allowing a user to breathe through the chamber,
• a valve member positioned in the chamber between the opening in the mouthpiece and the vent of the chamber, the valve member having an aperture, and
• an actuator coupled to the valve member to cyclically open and close the aperture in the valve member.