The Vent Multiplexor is a patent-pending emergency co-ventilation device intended to provide individualized temporary rescue mechanical ventilation during the COVID-19 pandemic. Developed in collaboration with Yale-New Haven Hospital and granted Emergency Use Authorization by the FDA on April 15, 2020, the Vent Multiplexor has the potential to help reduce the clinical need for ventilators during the COVID-19 pandemic, as it permits the emergency sharing of ventilators between two patients who are not equally matched, by delivering individualized tidal volumes, while also providing critical validation data on the quality of patient matching using existing “T-connector” and similar ventilator splitting technologies, a potentially revolutionary paradigm shift in the delivery of pandemic emergency respiratory care.