The Automatic Shut-Off/Diverter Device (ASODD) provides an extra inlet port to provide for an uninterrupted air supply should Carbon Monoxide (triggered by CO Monitor: or Low Pressure (triggered by Low Pressure Alarm) condition exist in your Breathing Air Supply. The second inlet port requires connection to a second Regulated Air Source meeting Grade D Specifications (either a Back-Up Compressor with the proper safety devices, or a Bottled Air System).
