Reduced Oxygen Breathing Device 3 (ROBD3)

The Environics® Series Reduced Oxygen Breathing Device 3 is the newest in our line of systems that simulate altitude exposure and can be utilized for both research and hypoxia training. It is customizable for expanded research capabilities.


Features of the ROBD3

  • Large touch screen user interface (no remote mode)
  • Non-consumable O2 sensor design
  • A new pulse oximeter with integrated 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 and mask connections moved to the rear of the chassis
  • Customizable for research, including addition of CO2



Profile Programming


Run Mode


Alarming Examples



Aircrew training and research
Application Document: US Navy - Mask-On Hypoxia Training for Tactical Jet Aviators (PDF)
Application Document: Hypoxia Recognition and Recovery Training for Commercial Pilots and Cabin Crew (Powerpoint)

References in Scientific Literature

  • Clinical research
  • High altitude training and research
  • Medical stress testing
  • Hypoxia Simulator
  • 0-34,000 feet elevation
  • 21% oxygen to 4.09% oxygen
  • Integrated pulse oximeter
  • Integrated oxygen analyzer
  • Emergency Oxygen dump switch for manual delivery of 100% oxygen
  • Power Input: 110 to 240 VAC

  • EMI / RFI protected
Gas inputs:
  • Standard: 1/4" FNPT
  • Pressure: Nitrogen and air: 40 psig
  • Oxygen: 20 psig
  • Optional: Rear panel quick disconnect fittings with SS braided hoses and regulators
  • Regulator fittings
Gas input color codes
  • Nitrogen: CGA 580 (BLACK)
  • Air: CGA 346 (YELLOW)
  • Oxygen: CGA 540 (GREEN)

  • Capacity: One Subject Under Test (SUT) at a time
  • Oxygen Dump: 100% oxygen dump switch to be activated by the operator.

  • Pulse oximeter:
  • Built in displays for both pulse and SpO2
  • User selectable alarm settings
  • Finger tip probe or Y sensor with ear clips
  • SpO2 (Oxygen Saturation)
  • Range: 0-100%
  • Accuracy: (for 1 standard deviation or 68% of sample distribution)
  • +/- 2 digit SpO2 (for 70-100% SpO2)
  • Display Resolution: 1%
Pulse Rate
  • Range: 0-300 beats per minute (bpm)
  • Accuracy: +/- 1% of full scale (for 1 standard deviation or 68% of sample distribution)
  • Display Resolution: 1 bpm

  • Oxygen sensor:
  • Range: 1 - 100% oxygen
  • Accuracy: Less than +/- 1.0% oxygen at constant temperature and pressure - (when calibrated in air and 100% oxygen)
  • Resolution: 0.01% oxygen

  • Output range: User programmable for altitude / oxygen concentration and duration at each step

  • Altitude range: 0 ft to 34,000 ft
  • Incremental adjustment of altitude: 1 foot
  • Maximum ascent/descent rate: 1,000 feet per second
  • Minimum ascent/descent rate: 1 foot per minute

  • Breathing mask connector: MS 22058-2

  • Dimensions: (approximate)
  • Height: 12.0" (30.48 cm)
  • Width: 17.5" (44.45 cm)
  • Length: 23.5" (59.69 cm)

  • Weight: 45 lbs (20.4 kg)

  • Electrical Requirements:
  • Voltage: 110-240 VAC ( +/- 10%), 50/60 HZ
  • Power consumption: 55 watts

  • Performance Temperatures:
  • 15° C to 35° C

  • Storage Temperature Range
  • -10° C to 50° C
  • Contact Environics to discuss your custom needs!
  • Wheeled shipping case with dual handles, One-piece construction, molded from lightweight, high-impact polyethylene
  • Dual stage regulators with braided hoses (various lengths)
  • Additional pulse oximeter probes (finger, ear), sensors
  • Simulator Accessory Package

Environics is a registered trademark of Environics Inc. Other trade names or brand names are the property of their respective holders. We hope the information given here will be helpful. It is based on data and knowledge considered to be true and accurate and is offered for the users' consideration, investigation and verification, but we do not warrant the results to be obtained. All specifications and descriptions contained herein are subject to change without notice. Please read all statements, recommendations or suggestions in conjunction with our conditions of sale which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use which would infringe any patent or copyright.

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