Abstract: An inexpensive, disposable device for collecting a mid-stream urine specimen from a female donor which device can be used by the donor herself without professional help. The device comprises a container having two chambers, one for collecting and discarding the initial, unwanted portion of the urine flow and the other chamber for collecting and retaining the later, cleaner, portion of the urine flow. A pivoted "paddle" valve comprising two conjoined paddles is disposed between the chambers and--controlled by the flow of urine, itself--directs the first, contaminated, portion of the urine to the discard chamber and directs the remainder of the flow to the specimen chamber. Initially, one of the paddles covers and seals the specimen chamber to prevent urine from entering that chamber. The other paddle is suspended over the opening of the discard chamber.