2
The patented MH EDS O2D2-2G (O2D2) is a one or two-user aviation oxygen delivery device. It is designed to deliver aviation
oxygen in the most efficient, comfortable and convenient way possible. With its user-selectable settings, apnea alarm and
small size, the O2D2 is the most portable and flexible electronic digital oxygen delivery system in the world.
By providing a measured pulse of oxygen at the beginning of each inhalation, the O2D2 supplies the oxygen you need to
stay alert and comfortable while flying. In contrast to constant flow systems that deliver more oxygen than the body needs,
the O2D2 provides a short, measured pulse as you inhale. This efficient patented delivery technology ensures that you get
the proper amount of oxygen (according to your breathing rate and physiological needs), at your altitude to stay safe and
comfortable. It also promises a dramatic increase in cylinder duration, which enables you to enjoy the benefits of oxygen
use below the mandated altitude. This means fewer headaches, less fatigue and better alertness when flying at night or long
distances, enabling you to fly longer between refills, save weight, as well as space with a smaller cylinder!
The programmability of the O2D2 means that, unlike constant-flow oxygen systems, you can “set it and forget it”. By auto-
matically detecting your pressure altitude, the O2D2 can be set to start providing oxygen immediately or at a specified altitude
and will automatically adjust the oxygen flow as your altitude changes.
When you’re flying, you have more important
things to do than adjust your oxygen flow during altitude changes?
BASIC SAFETY
Pure oxygen is a highly oxidizing gas and can vigorously accelerate combustion. It can provide a catalyst for spontaneous combus-
tion resulting in personal injury or death if not used properly and with caution.
DO NOT use any type of oil or grease on
any of the fittings, valves or cylinders. DO NOT smoke while in use. DO NOT operate near an open flame.
Use only approved MH External Power Supply with the O2D2-2G as the voltages are not compatible.
2
PILOT
#1 Blue
6 mm
outlet connects to
Pilot cannula or face mask
Audio port
. On the bottom.
Sound from flow-fault and
apnea alarm conditions only.
Static ports,
DO NOT
COVER
External 4.5 VDC
Power Connector
On the bottom.
See Page 8
Red
4 mm inlet
connects to the
regulator
Power On/Off
and
Rotary
Mode-Selector Switc
h
#2 Blue
6 mm
outlet
connects to User #2
cannula or face mask
Red/Green LED
indicator for
User 1 (Pilot)
Red/Green
LED
indicator
for User 2
Static ports
,
DO NOT
COVER
Mounting
Rings
Low Battery Warning
FEATURES
INTRODUCTION
• Easy-to-use, small size and light weight.
• Incorporates a MIL spec ruggedized easy-to-grip rotary control switch providing improved reliability, increased ease of function
and visibility. This switch also has very positive position detents for excellent tactile feedback making it resistant to changes from
casual rubbing or bumping.
• Automatically adjusts oxygen flow for altitude pressure density.
• Provides reduced oxygen consumption through more efficient oxygen delivery than standard constant-flow systems.
• Rotary Mode-Selector Switch allows automatic altitude enable, Night and Day operations and high flow settings.
• Green/Yellow/Red LED’s indicate oxygen flow, alarm, and status.
• Audible and visible flow-fault alarm informs user of kinked, pinched, or disconnected oxygen lines, obstructed cannula or mask.
•
Reduced dry mouth and sinus discomfort compared to constant-flow oxygen systems.
