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A liquid aerator in one embodiment includes an air deliverer having a bulb pump portion formed integrally with a stem portion; a one-way valve located in the bulb pump portion of the air deliverer; and a porous diffuser located at a distal end of the stem portion of the air deliverer. A liquid aerat

A liquid aerator in one embodiment includes an air deliverer having a bulb pump portion formed integrally with a stem portion; a one-way valve located in the bulb pump portion of the air deliverer; and a porous diffuser located at a distal end of the stem portion of the air deliverer. A liquid aerator in another embodiment includes an air deliverer having a bottle shape including a larger diameter base portion formed integrally with a narrower diameter neck portion; a one-way valve located in the base portion of the air deliverer; and a porous diffuser located at a distal end of the neck portion of the air deliverer.

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1. A liquid aerator comprising: an air deliverer including a bulb pump portion formed integrally with a stem portion;a one-way valve located in the bulb pump portion of the air deliverer; anda porous diffuser located at a distal end of the stem portion of the air deliverer, wherein the distal end of

1. A liquid aerator comprising: an air deliverer including a bulb pump portion formed integrally with a stem portion;a one-way valve located in the bulb pump portion of the air deliverer; anda porous diffuser located at a distal end of the stem portion of the air deliverer, wherein the distal end of the stem portion stretches around an open end of the diffuser to seal to the diffuser. 2. The liquid aerator of claim 1, wherein the diffuser is removeably connected to the distal end of the stem portion of the air deliverer. 3. The liquid aerator of claim 1, wherein the bulb pump portion and the stem portion are molded as one piece. 4. The liquid aerator of claim 1, wherein the diffuser has a pore size of one-hundred microns or less. 5. The liquid aerator of claim 1, wherein the distal end of the stem portion of the air deliverer seals onto the porous diffuser. 6. The liquid aerator of claim 1, wherein the stem portion is tapered. 7. The liquid aerator of claim 1, wherein the stem portion is at least substantially cylindrical. 8. The liquid aerator of claim 1, wherein the air deliverer is rubber or plastic. 9. The liquid aerator of claim 1, wherein the diffuser is sintered metal. 10. The liquid aerator of claim 1, wherein the diffuser is cylindrical and the distal end of the stem portion stretches around an open end of the cylindrical diffuser to seal to the diffuser. 11. The liquid aerator of claim 1, wherein the bulb portion of the air deliverer is oblong in cross-section. 12. The liquid aerator of claim 1, wherein the bulb portion of the air deliverer is at least substantially circular in cross-section. 13. The liquid aerator of claim 1, wherein the bulb portion of the air deliverer is cylindrical and has a diameter that is larger than a diameter of the stem portion. 14. The liquid aerator of claim 1, wherein the bulb portion of the air deliverer has an end configured to enable the liquid aerator to be set on and supported by the end so that the stem portion extends upwardly without additional support. 15. The liquid aerator of claim 1, wherein an inner diameter of the distal end of the stem portion of the air deliverer defines a step against which the diffuser is abutted when fully inserted into the distal end. 16. The liquid aerator of claim 15, wherein the inner diameter of the distal end of the stem portion of the air deliverer is smaller than an outer diameter of the diffuser. 17. A liquid aerator comprising: an air deliverer having a bottle shape including a larger diameter base portion molded as one piece with a narrower diameter neck portion;a one-way valve located in the base portion of the air deliverer;a porous diffuser located at a distal end of the neck portion of the air deliverer; andwherein an inner diameter of the distal end of the neck portion of the air deliverer defines a step against which the porous diffuser is abutted when fully inserted into the distal end. 18. The liquid aerator of claim 17, wherein the base portion of the bottle-shaped air deliverer has an end configured to enable the liquid aerator to be set on and supported by the end so that the neck portion extends upwardly without additional support. 19. The liquid aerator of claim 17, wherein the air deliverer is rubber or plastic. 20. A liquid aerator comprising: an air deliverer including a bulb pump portion formed integrally with a stem portion;a one-way valve located in the bulb pump portion of the air deliverer;a porous diffuser located at a distal end of the stem portion of the air deliverer; andwherein an inner diameter of the distal end of the stem portion of the air deliverer defines a step against which the porous diffuser is abutted when fully inserted into the distal end. 21. The liquid aerator of claim 20, wherein the inner diameter of the distal end of the stem portion of the air deliverer is smaller than an outer diameter of the diffuser.