A one-way valve allows air to be drawn from an air tight container using a vacuum source. When the vacuum source is removed, the one-way valve prevents air from re-entering the container. A pump evacuates air from the container including a housing cooperatively engaging the housing for filter and cap assembly of the one way valve assembly. A seal isolates the pump housing from the cap sealing housing, and a handle is provided to withdrawably evacuate the air from the container.