An improved foam generation assembly for a container includes a foam generator for producing foam. Two channels allow air or liquid into the foam generator. However, if one channel provides air for the foam generator, then the other channel provides liquid. A tube is attached to one channel, and extends near the base of the container. Thus, when the container is in is squeezed while in a generally upright position, liquid enters the tube and passes through a channel into the foam generator. Air enters the foam generator through the other channel. When the container is squeezed in a generally inverted position, air enters the tube and passes through a channel into the foam generator. Liquid enters the foam generator through the other channel. A valve is provided to seal the channels when foam is not being produced by the foam generator. A vent located in the exterior of the foam generation assembly allows air to return to the container.