Resistance breathing device

1. A resistance breathing device, comprising:

a face mask having an interior surface, an exterior surface opposite said interior surface, an aperture extending through said face mask from said exterior surface to said interior surface, and a perimeter, wherein said face mask is adapted to overlay a user's mouth and nose such that said perimeter forms an air-tight seal with the user's face and around the user's mouth and nose and said face mask defines an internal area between said interior surface of said face mask and the user's face;

an insert having at least one inlet aperture extending therethrough, said insert being disposed within said aperture of said face mask, said aperture of said face mask forming an air-tight seal around said insert; and

an adjustment element including at least one inlet aperture extending therethrough, said adjustment element being movably attached to said insert such that said adjustment element is movable rotationally about an axis of rotation with respect to said insert between at least a first position and a second position, wherein when said adjustment element is in said first position, a first portion of at least one of said at least one inlet aperture of said adjustment element overlays a first portion of at least one of said at least one inlet aperture of said insert, and wherein when said adjustment element is in said second position, a second at least a portion of at least one of said at least one inlet aperture of said adjustment element overlays a second at least a portion of at least one of said at least one inlet aperture of said insert, said second at least a portion of said at least one of said at least one inlet aperture of said adjustment element being larger in size than said first portion of said at least one of said at least one inlet aperture of said adjustment element, wherein said adjustment element includes a handle that facilitates movement of said adjustment element between said first position and said second position,

wherein said handle extends in a direction radially away from the axis of rotation, wherein a ridge extends along a side of said handle facing said insert, and wherein a plurality of grooves is formed in said insert, said ridge and each of said plurality of grooves being sized, shaped, and positioned in a complementary manner such that, when said adjustment element is in said first position, said ridge of said handle is positioned within a first one of said plurality of grooves, and such that, when said adjustment element is in said second position, said ridge of said handle is positioned within a second one of said plurality of grooves.

2. The resistance breathing device of claim 1 , wherein said at least one inlet aperture of said adjustment element and said at least one inlet aperture of said insert are circumferentially arrayed about the axis of rotation.

3. The resistance breathing device of claim 1 , wherein said handle includes a grip.

4. The resistance breathing device of claim 1 , wherein said adjustment element is attached to said insert by at least one clip.

5. The resistance breathing device of claim 1 , wherein said at least one inlet aperture of said insert includes a plurality of inlet apertures and said at least one inlet aperture of said adjustment element includes a plurality of inlet apertures.

6. The resistance breathing device of claim 5 , wherein said plurality of inlet apertures of said insert includes three inlet apertures and said plurality of inlet apertures of said adjustment element includes three inlet apertures.

7. The resistance breathing device of claim 1 , wherein said face mask and said insert are integrally formed.

8. The resistance breathing device of claim 7 , wherein said face mask is overmolded to said insert.

9. The resistance breathing device of claim 1 , wherein said insert includes a central aperture, and

wherein said adjustment element includes a central aperture overlaying said central aperture of said insert plate and having a profile complementary to said central aperture of said insert plate, a biasing member extending across said central aperture of said adjustment element, and a stem extending from a center of said biasing member and away from said insert.

10. The resistance breathing device of claim 9 , further comprising:

an air exhaust valve assembly adapted to prevent air from passing therethrough from an external environment to said internal area, said at least one air exhaust valve assembly being adapted to allow air to pass therethrough from said internal area of said face mask to the external environment,

wherein said air exhaust valve assembly includes said central aperture of said insert, said central aperture of said adjustment element, and a flexible membrane having a first side, a second side opposite said first side, a profile complementary to said central aperture of said central insert, a post extending from said first side, and a central hole extending through said post and said first and second sides, said flexible membrane being disposed adjacent said adjustment element such that said stem of said adjustment element is disposed within said central hole of said flexible membrane and said second side of said flexible membrane abuts said biasing member of said adjustment element.

11. The resistance breathing device of claim 10 , further comprising a face plate having an interior surface and an exterior surface opposite said interior surface of said face plate, said face plate overlaying said insert and being oriented such that said interior surface of said face plate faces said insert.

12. The resistance breathing device of claim 11 , wherein said face plate includes a retainer extending from said interior surface of said face plate, said retainer being sized, shaped, and positioned so as to abut said stem of said adjustment element.

13. The resistance breathing device of claim 12 , wherein said face plate includes a plurality of slots extending therethrough, said retainer of said face plate being located between a first one of said plurality of slots and a second one of said plurality of slots.

14. The resistance breathing device of claim 13 , wherein each of said plurality of slots is sized, shaped, and positioned so as to allow air to pass therethrough.

15. The resistance breathing device of claim 14 , wherein said face plate is fixed to said insert by at least one clip.

16. The resistance breathing device of claim 1 , wherein said ridge of said handle and said grooves of said insert cooperate to resist movement of said ridge of said handle away from a position within one of said grooves of said insert.

17. A resistance breathing device, comprising:

a face mask having an interior surface, an exterior surface opposite said interior surface, an aperture extending through said face mask from said exterior surface to said interior surface, and a perimeter, wherein said face mask is adapted to overlay a user's mouth and nose such that said perimeter forms an air-tight seal with the user's face and around the user's mouth and nose and said face mask defines an internal area between said interior surface of said face mask and the user's face;

an insert having a plurality of apertures extending therethrough, said insert being disposed within said aperture of said face mask, said aperture of said face mask forming an air-tight seal around said insert; and

an adjustment element including a plurality of apertures extending therethrough, said adjustment element overlaying said insert such that at least a portion of at least one of said plurality of inlet apertures of said adjustment element overlays at least a portion of at least one of said plurality of apertures of said insert, said adjustment element being movable rotationally about an axis of rotation with respect to said insert between at least a first position and a second position, wherein when said adjustment element is in said first position, a first at least a portion of at least one of said plurality of apertures of said adjustment element overlays a first at least a portion of at least one of said plurality of apertures of said insert to define a first overlaying cross-sectional area, and wherein when said adjustment element is in said second position, a second at least a portion of at least one of said plurality of apertures of said adjustment element overlays a second at least a portion of at least one of said plurality of apertures of said insert to define a second overlaying cross-sectional area, said second overlaying cross-sectional area being larger in size than said first overlaying cross-sectional area, wherein said adjustment element includes a handle that facilitates movement of said adjustment element between said first position and said second position,

wherein said handle extends in a direction radially away from the axis of rotation, wherein a ridge extends along a side of said handle facing said insert, and wherein a plurality of grooves is formed in said insert, said ridge and each of said plurality of grooves being sized, shaped, and positioned in a complementary manner such that, when said adjustment element is in said first position, said ridge of said handle is positioned within a first one of said plurality of grooves, and such that, when said adjustment element is in said second position, said ridge of said handle is positioned within a second one of said plurality of grooves.

18. A resistance breathing device, comprising:

an insert having a plurality of inlet apertures extending therethrough; and

an adjustment element including an inlet aperture extending therethrough said adjustment element overlaying sa insert and being a movable rotationally about an axis of rotation with respect to said insert between at least a first position and a second position, wherein when said adjustment element is in said first position, a first at least a portion of said inlet aperture of said adjustment element overlays a first at least a portion of at least one of said plurality of inlet apertures of said insert, and wherein when said adjustment element is in said second position, a second at least a portion of said inlet aperture of said adjustment element overlays a second at least a portion of at least one of said plurality of inlet apertures of said insert, said second at least a portion of said inlet aperture of said adjustment element being larger in size than said first at least a portion of said inlet aperture of said adjustment element, wherein said adjustment element includes a handle that facilitates movement of said adjustment element between said first position and said second position,

wherein said handle extends in a direction radially away from the axis of rotation, wherein a ridge extends along a side of said handle facing said insert, and wherein a plurality of grooves is formed in said insert, said ridge and each of said plurality of grooves being sized, shaped, and positioned in a complementary manner such that, when said adjustment element is in said first position, said ridge of said handle is positioned within a first one of said plurality of grooves, and such that, when said adjustment element is in said second position, said ridge of said handle is positioned within a second one of said plurality of grooves.