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Drive Chad Evolution Electronic Oxygen Conserver

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6.1"L x 2.5"H x 3.1"W (15.5 cm x 6.4cm x 7.9cm)

SKU OM-900
$279.99 Each
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Drive Chad Evolution Oxygen Conserver is designed for use as part of a portable ambulatory oxygen system for the purpose of facilitating long-term oxygen therapy. This conserver provides mobile LTOT patients with an extended operating time of their mobile system. It includes a combination of a low-pressure regulator and an oxygen conserver and is capable of delivering a precise amount of supplemental oxygen at the optimal point in the breathing cycle. Benefits mouth breathers and patients who cannot take deep breaths by triggering more easily.


Total: $279.99

Earn $14.00 in HPFY rewards

Features of Drive Chad Evolution Oxygen Conserver

  • Senses a breath/delivers oxygen in the first half of the inspiratory cycle
  • The operating pressure range of the oxygen conserver is 200-3000 PSI
  • Auto shut-off feature conserves battery life
  • Weighs only 14.9 ounces with batteries
  • Fits easily in virtually any carry bag
  • Delivers a uniform oxygen pulse at increments: 1, 2, 3, 4, 5, 6, 7 Plus CF preset @ 2 LPM
  • Minimum 2-year battery life* utilizing 2 AA batteries
  • A single push button selects the equivalent LPM dosage settings
  • Delivers a 5:1 savings ratio from 14-40 breaths per minute
  • Drive Chad Evolution Oxygen Conserver User Manual

Oxygen Cylinder Duration

Because the total delivery of oxygen via the EVOLUTION conserver is related to breathing rates, it is user adaptive in that the total oxygen delivered per minute will automatically adjust with user need, as expressed by increased or decreased breathing rates. For example, in all settings, twice as much oxygen per minute will be delivered if one breathes twenty (20) times per minute as compared with ten (10) times per minute. The table below provides useful information to be used as a guide.

Cylinder Type Cylinder Volume


CF2 lpm
1 2 3 4 5 6 7

Estimated Cylinder Duration in Hours

(Based on 20 breathes per minute)

M2 36 Liters 3.0 1.5 1.0 0.8 0.6 0.5 0.4 0.3
M4 (A) 113 Liters 9.4 4.7 3.1 2.4 1.9 1.6 0.7 0.9
M6 (B) 164 Liters 13.7 6.8 4.6 3.4 2.7 2.3 1.9 1.4
ML6 171 Liters 14.3 7.1 4.8 3.6 2.9 2.4 2.0 1.4
M7 198 Liters 16.5 8.3 5.5 4.1 3.3 2.8 2.3 1.7
M9 (C) 246 Liters 20.5 10.3 6.8 5.1 4.1 3.4 2.9 2.1
D 425 Liters 35.4 17.7 11.8 8.9 7.1 5.9 5.0 3.5
E 680 Liters 56.7 28.3 18.9 14.2 11.3 9.4 8.1 5.7

What to buy with Oxygen Conserving Device

How to Install Drive Chad Conserver?

  1. Loosen the cylinder adjustment handle.
  2. Lower the EVOLUTION conserver over any CGA 870 post-valve cylinder with the alignment pins toward the holes on the cylinder neck.
  3. Align the two (2) pins and seal the washer with the corresponding holes on the cylinder post valve.
  4. While holding the unit in place, tighten the cylinder adjustment handle by turning it clockwise.

How to Operate this Oxygen Conserver?

  1. Make sure the EVOLUTION conserver is set to the “PULSE” position. Battery-saving technology has eliminated the need for an “OFF” position. The unit will go to “Sleep Mode” after three minutes of non-use. The unit will turn on again when inspiration is detected or the Selector Button is pressed.
  2. To reduce the risk of rapid oxygen recompression and fire, OPEN THE CYLINDER VALVE SLOWLY and completely so that the pressure gauge moves slowly as it indicates the cylinder pressure.
  3. Listen for leaks. If a leak is present, close the cylinder valve, check the seal washer, and reinstall. If the leak persists, DO NOT USE THE EQUIPMENT. Contact your supplier for repair.
  4. To select the setting on the EVOLUTION conserver (1-7) that corresponds to the appropriate delivery setting, press and hold the Selector Button in the center of the Selector Knob until the appropriate LED display light is illuminated.
    NOTE: To check your current setting, press and release the Selector Button in the center of the Selector Knob.
  5. Place the nasal cannula into position with the prongs in the nostrils and begin breathing. The EVOLUTION conserver will now start to deliver oxygen. The amount of oxygen delivered is determined by the setting. Adequate oxygen delivery will be achieved because of the precise time in the breathing cycle that the pulse of oxygen is delivered.
    NOTE: To help prevent possible damage to the unit, keep the EVOLUTION conserver in a carrying bag. Several bags are available for use with different cylinder sizes and configurations.
  6. When finished using the system, turn off the oxygen supply cylinder valve and continue breathing through the nasal cannula until no further oxygen is detected.
  7. Remove the nasal cannula.
  8. When not in use, store in a clean, dry location

Drive Chad Evolution Oxygen Conserver Specifications

Particulars Specification
Dimensions (L x H x W) 6.1” L (15.5 cm) x 2.5” H (6.4 cm) x 3.1” W (7.9 cm)
Weight Approximately 14.9 ounces (422 grams) with batteries
Input pressure 200 to 3000 PSI (13.8 bar to 206.8 bar)
Temperature range

15% - 95% non-condensing
Up to 95% non-condensing
Cannula Standard nasal cannula, up to 7 ft. (2.13 m)
Maximum breathing rate 40 breaths per minute


Drive Chad Evolution Oxygen Conserver Warranty

Limited 2 Year

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