This demonstration video goes over the features of the Aeris AT400 Ion Regulator. This diving regulator features Dry Valve Technology which eliminates corrosion of critical internal components. It has an environmentally sealed first stage which provides greater reliability, less maintenance and higher performance. The AT400 has an orthodontic mouthpiece which alleviates jaw fatigue by easing the bite needed to hold the regulator in your mouth. It also has a pneumatically balanced high performance 2nd stage. The Ion has two diver adjustable switches on the 2nd stage which allow the diver to prevent unwanted free flow and allow the diver to adjust the breathing sensitivity of the 2nd stage.