MED-TAC International's Oxygen Delivery collection covers the full spectrum of supplemental oxygen equipment: portable oxygen cylinders, regulators, non-rebreather masks, simple face masks, nasal cannulas, bag-valve masks (BVM), and portable oxygen delivery systems. Stocked for EMS providers, fire/rescue teams, tactical medics, and wilderness medicine teams where supplemental oxygen is a critical component of trauma resuscitation and medical stabilization.
Why Is Supplemental Oxygen Critical in Trauma and Prehospital Care?
Supplemental oxygen plays a central role in trauma resuscitation by addressing two of the three legs of the "lethal triad" — hypothermia, acidosis, and coagulopathy — that kill trauma patients in the prehospital environment. Hemorrhagic shock causes tissue hypoxia as circulating red blood cells fall and oxygen delivery to end organs fails. Supplemental oxygen increases the fraction of inspired oxygen (FiO₂), maximizing oxygen saturation of the remaining hemoglobin and buying time for hemorrhage control and resuscitation. In traumatic brain injury (TBI), even brief periods of hypoxia — SpO₂ below 90% — are independently associated with worse neurological outcomes. Prehospital oxygen is also used to manage cardiac events, CO poisoning, respiratory distress, and altitude illness. The Joint Trauma System Clinical Practice Guidelines and TCCC protocols both address oxygenation management in the prehospital setting. See the full respiratory support category at Respiratory Support.
How Do Oxygen Delivery Devices Compare by Flow Rate and FiO₂?
Each oxygen delivery device provides a different achievable FiO₂ (fraction of inspired oxygen) at standard flow rates. Selecting the right device depends on the patient's respiratory effort, clinical status, and oxygen supply available.
| Device |
Flow Rate |
Approx. FiO₂ |
Best Use |
| Nasal Cannula |
1–6 LPM |
24–44% |
Mild hypoxia, spontaneous breathing, tolerant patients |
| Simple Face Mask |
6–10 LPM |
35–55% |
Moderate hypoxia, supplemental O2 for respiratory distress |
| Non-Rebreather Mask (NRB) |
10–15 LPM |
60–90% |
Serious hypoxia, trauma, CO poisoning, spontaneous breathing |
| Bag-Valve Mask (BVM) w/ O2 |
15 LPM |
Up to 100% with reservoir |
Respiratory arrest, assisted ventilation, apneic patients |
| Demand Valve / Flow-Restricted NRB |
On-demand |
~96% |
Conserves O2 supply, self-administered, industrial rescue |
What Is a Bag-Valve Mask and When Is It Used in Prehospital Care?
A bag-valve mask (BVM) — sometimes called an Ambu bag — is a self-inflating resuscitation device used to deliver positive-pressure ventilation to patients in respiratory arrest or with inadequate spontaneous breathing. The BVM consists of a silicone or rubber self-inflating bag, a one-way valve, an oxygen reservoir bag, and a face mask in adult, pediatric, and infant sizes. When connected to supplemental oxygen at 15 LPM and used with a reservoir, a BVM can deliver approximately 100% FiO₂. In TCCC and prehospital trauma protocols, BVM ventilation is indicated for airway-compromised patients after airway adjuncts (OPA/NPA) have been placed. Proper mask seal and two-provider technique significantly improve tidal volume delivery. The BVM is the standard backup device before advanced airway placement and is a required component in most ALS and BLS kit standards. View related airway supplies at Airway Management Kits & Supplies.
What Portable Oxygen Systems Are Used in Tactical and Remote Settings?
Portable oxygen systems for tactical medicine and wilderness/remote care must balance oxygen volume against weight and packability. Standard EMS D-cylinders (425L) and E-cylinders (680L) are common on apparatus but heavy for foot-mobile operations. Compact aluminum M9 cylinders (170L) and M6 cylinders (164L) are common in tactical medic loadouts and jump bags where weight is a constraint. Oxygen concentrators — devices that extract oxygen from ambient air — are increasingly used in prolonged field care (PFC) and austere medical facility settings where resupply is limited, eliminating the need to transport cylinders. Regulators must be matched to the cylinder neck valve type (CGA-870 for post valves, CGA-540 for yoke valves); verify compatibility before purchasing. For tactical and remote EMS oxygen setups, see the Fire/Rescue/EMS Packs & Cases collection for O2 bags and carriers.
Stock Your Oxygen Delivery System
Regulators, masks, BVMs, nasal cannulas — everything for prehospital oxygen management, sourced direct.
Frequently Asked Questions
What is the difference between a non-rebreather mask and a simple face mask?+
A non-rebreather mask (NRB) has a one-way valve between the reservoir bag and the mask that prevents exhaled gas from entering the reservoir, and exhalation ports that prevent the patient from re-inhaling exhaled CO₂. This allows delivery of 60–90% FiO₂ at 10–15 LPM — significantly higher than a simple face mask (35–55% at 6–10 LPM), which has open exhalation ports and no reservoir valve. The NRB is the preferred device for serious hypoxia in spontaneously breathing patients. Use the NRB for high-acuity patients including trauma, carbon monoxide exposure, and severe respiratory distress.
How long does a portable oxygen cylinder last in the field?+
Duration depends on cylinder size and flow rate. Use the formula: Duration (min) = [(Cylinder pressure in PSI – safe residual pressure) × cylinder constant] ÷ flow rate (LPM). As a practical reference: an E-cylinder at 2000 PSI delivers approximately 45 minutes at 15 LPM. An M9 cylinder at 2000 PSI delivers approximately 15–20 minutes at 15 LPM. For prolonged transport or mass casualty incidents, agencies must plan oxygen resupply or use demand valves to conserve supply. Always factor in a 200–500 PSI residual to avoid running a cylinder completely dry in the field.
Can a BVM be used without supplemental oxygen?+
Yes. A BVM self-inflates with ambient room air (~21% FiO₂) and can provide positive-pressure ventilation without an oxygen source — this is critical for settings where oxygen is unavailable or exhausted. When connected to supplemental oxygen without a reservoir, the BVM delivers approximately 40% FiO₂. With a reservoir bag attached and oxygen flowing at 15 LPM, delivery increases to approximately 90–100% FiO₂. For cardiac arrest and respiratory arrest management in resource-limited environments, a BVM without oxygen remains the standard backup for ventilation support.
What regulator type is used for portable EMS oxygen cylinders?+
Most portable EMS oxygen cylinders in the U.S. use either a CGA-870 (post valve) or CGA-540 (yoke valve) connection. The CGA-870 is standard on D, E, and M-series portable cylinders used by EMS and fire. The CGA-540 is typically found on larger H and K cylinders used in fixed installations. Regulators must match the valve type of the cylinder — do not attempt to force incompatible fittings. Single-stage and two-stage regulators are available; two-stage regulators provide more consistent flow as cylinder pressure drops. Always confirm regulator-cylinder compatibility before fielduse.
What does SpO₂ tell providers about oxygen delivery effectiveness?+
SpO₂ (peripheral oxygen saturation) measured by pulse oximetry reflects the percentage of hemoglobin saturated with oxygen at a peripheral site, typically the finger or earlobe. Normal SpO₂ is 95–100%. Values below 94% indicate hypoxemia and require supplemental oxygen intervention. Below 90% is considered clinically significant hypoxemia requiring immediate oxygen and airway intervention. In trauma, SpO₂ is most useful as a trend monitor — a rapidly falling reading during transport indicates deteriorating oxygenation. Limitations include poor signal in hypothermia, vasoconstriction, shock states, and CO poisoning (which falsely elevates the reading). End-tidal CO₂ monitoring provides complementary ventilation assessment. See
Diagnostic & Monitoring for pulse oximeters and capnography equipment.
Are oxygen delivery products available for tactical medic loadouts?+
Yes. Tactical medics operating with military units, rescue task forces, or SWAT teams increasingly carry compact oxygen delivery equipment — particularly BVMs, NRBs, and portable oxygen cylinders — in their primary medical bags or on their persons. TCCC-based prolonged field care (PFC) protocols specifically address oxygenation management when evacuation is delayed. Compact M9 and M6 cylinders with lightweight regulators are common in tactical kits. MED-TAC carries oxygen delivery supplies sized for both apparatus-based EMS and foot-mobile tactical medical operators.
Related Collections
All products sourced from the actual brand manufacturer or authorized master distributors. CoTCCC recommendation status verified where applicable. Ships from MED-TAC International, Pembroke Pines, FL — clinician-founded, veteran-led, SDVOSB-certified.
