The U. S. Military currently uses the ROBD 2 to train aircrew to recognize the signs and symptoms of hypoxia and to perform the appropriate emergency procedures and additionally, conducts hypoxia research.
As of 2017, the Navy will no longer use low-pressure chambers, instead using only the ROBD for hypoxia training.The Army also relies heavily on the ROBD for their re-training of crews.
New Features of the 6202, available Spring 2016
A new pulse oximeter with touch screen interface
Enter one flow rate for all altitudes between 40 and 80 LPM
Breathing bag is replaced with an internal reservoir, generating a faster refresh rate to the mask.
Addition of an inline Oxygen filter.
Pulse ox probe connection moved to the rear of the chassis
HRT is the only program type.
The 6202 uses Thermal Mass Flow Controllers (MFC) to mix breathing air and nitrogen to produce the sea level equivalent atmospheric oxygen contents for altitudes up to 40,000 feet. The MFC's are calibrated on a primary flow standard traceable to the National Institute of Standards and Technology (NIST). The system introduces pressure changes and gas expansion as a function of altitude. Several safety features are built into the device: prevention of over pressurization of the subject's mask, prevention of reduced oxygen contents below those being requested for a particular altitude and an emergency dump switch that will supply 100% O2 to subjects. The software is menu driven. Built-in self-tests verify all system component functionality before the operation of the system can begin. If any self-test fails the system will not operate. The system is designed to work with both bottled gases and gases produced by a Nitrogen/Air Generator (available separately).