How Pulse Demand Works

The patented MH EDS (Electronic Delivery System) is a one (O2D1)  or two-user (O2D2) 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 MH EDS  is the most portable and flexible electronic digital oxygen delivery system in the world. By providing a measured pulse of oxygen every time you breathe in, the MH EDS supplies the oxygen you need to stay alert and comfortable while flying. In contrast to constant flow systems that waste oxygen by supplying more than your body can use, the MH EDS provides a short pulse of oxygen as you inhale, ensuring that your oxygen is used most efficiently. Efficient oxygen delivery means you can fly further on a single oxygen refill or save space and weight with a smaller tank. It also makes it more feasible to enjoy the advantages of oxygen while flying below the altitudes where oxygen is mandated-- that can mean fewer headaches, increased alertness, and feeling less exhausted when you reach your destination. Your actual oxygen usage will be determined by your breathing rate and physiological needs at altitude. The programmability of the  MH EDS means that, unlike constant-flow oxygen systems, you can “set it and forget it”. By automatically detecting your pressure altitude, the MH EDS 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, don't you have more important things to do than adjust your oxygen flow during altitude changes?

Note: Our EDS O2D2-2G and O2D1-2G are portable systems designed and calibrated to be used with our regulators (~15 psig. dynamic to 25 MAX. psig. static). However, if you wish to operate from the outlets of a built-in system, we offer the EDS-STR stabilizing regulator. This will allow our portable EDS systems to operate with built-in systems that supply up to 90 psig. to the outlets in the aircraft.

Attachments: File Description File size Cylinder Chart 06/25/14 190 Kb EDS-O2D1, O2D2 Manual 10/16/14 1758 Kb EDS O2D2 Dimensions   38 Kb

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2 Stage Axial Regulator Specifications

The dual stage regulator allows the useful pressure of a cylinder
to be spent down to about 10 psi above the regulating pressure.
This will still yeild the specified flow rate for the application while
maintaining specified pressure and flow requirements.  This means you can almost empty your oxygen bottle to approx 30psi.  Instead of 400 to 500 psi.