Self-purging, air-stabilizing, illuminated collection system for breath analysis

A breath analysis system includes a dual-entry, illuminated breath collection tube that allows purging of ambient air while stabilizing the pressure and/or turbulence of exhaled breath. Circular illumination at either end of the collection tube acts as a visual prompt for proper use and for the reporting of test results. The collection tube may be placed along the width or length of a hand piece without adding size or bulk to the hand piece. The form factor utilization feature of the collection tube is suitable for adding breath alcohol measurement or other breath measurement capability to handheld products such as cell phones, PDAs, iPods(R), MP3 players, GPS units, cigarette lighters, and police batons.