Non-Rebreather Mask

Name: Non-Rebreather Mask
Brand: MED-TAC International
SKU: LX-NRB
Price: 1.99 USD
Availability: InStock

Your Price: $1.99

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SKU: LX-NRB

Type: Airway Device

Vendor: MED-TAC International

$1.99

PRODUCT INFORMATION

MED-TAC · Oxygen Delivery

Non-Rebreather Mask

The highest-concentration passive oxygen delivery for the spontaneously breathing patient — ~60–80% FiO₂ at 10–15 LPM.

What is a Non-Rebreather Mask? A single-use, disposable high-flow oxygen delivery device for spontaneously breathing patients. The MED-TAC NRB (SKU LX-NRB) includes a one-way exhalation valve, a reservoir bag that accumulates oxygen between breaths, and 7 ft of supply tubing. At 10–15 LPM it delivers roughly 60–80% FiO₂ — the highest concentration achievable without intubation or a sealed circuit. Standard adult sizing; essential for prehospital trauma care and any setting where supplemental oxygen is indicated.

Key Specifications

Manufacturer / Vendor	MED-TAC International
SKU	LX-NRB
Configuration	Single-use, disposable
Tubing Length	7 ft (oxygen supply tubing)
Included Components	Mask body, one-way exhalation valve, reservoir bag, 7 ft O₂ tubing
FiO₂ (typical)	~60–80% at 10–15 LPM
Minimum O₂ Flow	10–15 LPM (keeps reservoir inflated)
Patient Type	Spontaneously breathing adult
Valve Type	One-way exhalation (prevents rebreathing)
Reservoir Function	Accumulates O₂ between inhalations
Compatible Equipment	Any standard medical O₂ cylinder with regulator (standard barb fitting)

Key Features

High-concentration FiO₂~60–80% inspired oxygen at 10–15 LPM — far above simple masks (35–50%) or nasal cannula (24–44%).

One-way exhalation valvePrevents exhaled CO₂-rich gas from re-entering the reservoir; the patient inspires from the oxygen-filled bag, not room air.

Oxygen-accumulating reservoirFills with oxygen between breaths so the full tidal volume is available even at peak inhalation demand.

7-foot supply tubingReaches a portable cylinder while keeping patient-positioning flexibility during transport or treatment.

Standard adult fitContoured mask with adjustable nose clip and soft perimeter seal across a range of facial anatomy.

Single-use / disposableEliminates cross-contamination risk; individually packaged for trauma kits, oxygen bags, and jump kits.

Clinical Overview — How the NRB Works

The non-rebreather mask is the upper boundary of non-invasive oxygen delivery for spontaneously breathing patients. Unlike simple face masks — which mix supplemental oxygen with entrained room air — the reservoir bag and one-way valve isolate inspired gas from exhaled waste, producing dramatically higher FiO₂ without an advanced airway.

The one-way valve at the reservoir/mask junction blocks exhaled gas (carbon dioxide, reduced oxygen) from re-entering the bag. Between breaths the oxygen source continuously refills the reservoir, so a full, oxygen-rich volume is ready for the next breath. At 10–15 LPM the delivered FiO₂ approaches 60–80%, varying with mask fit, respiratory rate, and tidal volume.

This makes the NRB the appropriate device for significant hypoxia in a patient who retains spontaneous respiratory drive — the highest-acuity oxygen tool before escalating to bag-valve-mask ventilation or a definitive airway. In TCCC/TECC settings, key indications include respiratory distress, blast injury, smoke inhalation, and post-hemorrhagic hypoxia.

Operating note: open the oxygen flow and let the reservoir fully inflate before applying the mask. A collapsed reservoir at application means the first breath pulls room air, not oxygen — inflate the bag first.

Who Uses the NRB Mask

TCCC providers — medics, PJs, and 18D Special Forces Medical Sergeants managing hypoxic casualties in austere settings where oxygen is carried.
EMS — BLS/ALS providers delivering prehospital oxygen for respiratory distress, altered mental status, and post-trauma patients.
TEMS / TECC — law enforcement medics and Rescue Task Force providers delivering oxygen in warm/hot zones without procedural airway intervention.
Wilderness / remote — expedition medics and SAR teams carrying portable oxygen for altitude illness, severe trauma, and respiratory emergencies.
Fire / hazmat — smoke inhalation and carbon monoxide exposure, where high-concentration oxygen is primary treatment.
Industrial / occupational health — facility response teams maintaining oxygen capability for confined-space rescue and toxic exposure.
Austere / operational medicine — ship-borne medical officers, forward surgical teams, and remote clinics.

Oxygen Delivery Device Comparison

Device	Typical FiO₂	O₂ Flow	Key Indication
Nasal cannula	24–44%	1–6 LPM	Mild hypoxia, comfort, long-duration delivery
Simple face mask	35–50%	6–10 LPM	Moderate hypoxia
Non-Rebreather (NRB)	~60–80%	10–15 LPM	Severe hypoxia, CO poisoning, respiratory distress
Bag-valve-mask (BVM)	~90–100%	15 LPM	Inadequate respiratory drive; requires active ventilation
Intubation / CPAP	Up to 100%	Variable	Respiratory failure, airway protection, definitive care

The NRB occupies the step between simple-face-mask oxygen and active ventilation — the highest-FiO₂ passive option. When a patient has adequate respiratory drive but severe hypoxia, the NRB is the correct device, avoiding the operator dependency of BVM and advanced airways while delivering much higher oxygen concentrations than simpler masks.

Clinical Indications

Blast and penetrating trauma — post-injury hypoxia, pneumothorax (after decompression), hemothorax, pulmonary contusion.
Carbon monoxide poisoning — CO binds hemoglobin ~240× the affinity of oxygen; high-concentration O₂ accelerates its displacement.
Respiratory distress — bronchospasm, asthma exacerbation, pulmonary edema, allergic reactions with bronchospasm.
Altitude illness / HAPE — descent plus supplemental oxygen; the NRB's high FiO₂ maximizes benefit from a limited supply.
Smoke inhalation — combined CO and airway irritation; treats the CO component while monitoring for upper-airway edema.
Post-arrest (spontaneously breathing) — high-concentration O₂ en route to definitive care, titrated once SpO₂ monitoring is available.
Drowning / near-drowning — aspiration-related hypoxia in patients who retain respiratory drive.

Operating Notes

Connect the 7 ft tubing to the oxygen source (cylinder regulator or wall outlet).
Set flow to 10–15 LPM — the reservoir must stay inflated.
Pre-inflate the reservoir bag before placing the mask.
Fit the mask with the nose clip and elastic strap for a consistent seal.
Reassess: the reservoir should deflate slightly with each breath but never fully collapse; increase flow if it does. Monitor SpO₂ when available.

Critical operating point Never reduce flow below what keeps the reservoir inflated between breaths. A flat reservoir means the patient is breathing room air, not supplemental oxygen — keep it at least one-third full at all times.

Complete Oxygen Delivery System

Oxygen source: Size D Oxygen Cylinder — the standard portable cylinder for EMS, TEMS, and tactical bags.
Regulator: Mini O₂ Regulator — compact, CGA870, with the 10–15 LPM range the NRB needs.
Delivery device: this Non-Rebreather Mask (LX-NRB) — connects directly to the regulator via standard O₂ barb.

See the full airway management collection for all oxygen-delivery and airway supplies.

Frequently Asked Questions

What flow rate does an NRB need?

At least 10 LPM to keep the reservoir inflated; most protocols use 10–15 LPM. Lower flow collapses the reservoir, so the patient inspires room air. If the bag fully collapses with each breath, increase the flow.

What FiO₂ does it deliver?

Roughly 60–80% at 10–15 LPM with a good seal; exact FiO₂ depends on seal quality, respiratory rate, and tidal volume. By comparison, a nasal cannula at 6 LPM delivers ~44% and a simple mask at 10 LPM ~50%.

Can it be used on unconscious patients?

It is for spontaneously breathing patients only. An unconscious patient without adequate respiratory drive needs BVM ventilation or a definitive airway. If spontaneous breathing is preserved, monitor closely and be ready to transition to BVM if effort deteriorates.

Is it reusable?

No — single-use, disposable. Reuse risks contamination from exhaled secretions. Stock multiples in trauma and oxygen kits.

What cylinder is compatible?

Any medical oxygen cylinder with a standard regulator set to 10–15 LPM. The Size D cylinder with the Mini O₂ Regulator is the recommended prehospital/tactical pairing.

How does it differ from a partial rebreather?

Both use a reservoir bag; the difference is the one-way valve. The NRB's valve blocks exhaled air from the reservoir, keeping it filled with source oxygen. A partial rebreather lacks this valve and returns early exhalation to the bag, yielding lower FiO₂.

Where does it fit in MARCH?

It supports the “R” (Respiration) phase of MARCH — high-flow oxygen for penetrating thoracic injury with hypoxia, tension pneumothorax after needle decompression, blast injury with respiratory compromise, and any hypoxic patient where oxygen is available.

Related searches: non-rebreather mask, NRB oxygen mask, high-flow oxygen mask, 15 LPM oxygen mask, prehospital oxygen delivery.

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.

SPECS & MEASUREMENTS

Specifications coming soon. Contact us for detailed product information.

FREQUENTLY ASKED QUESTIONS

What FiO2 does a non-rebreather mask deliver?

A properly applied non-rebreather mask at 10–15 LPM oxygen flow delivers approximately 60–80% FiO2 (fraction of inspired oxygen) — significantly higher than a simple face mask (~40% at 6–10 LPM) or nasal cannula (~24–44% at 1–6 LPM). The actual FiO2 depends on the tightness of the mask seal, the patient's respiratory rate and tidal volume, and the oxygen flow rate. The NRB cannot deliver true 100% FiO2 due to mask seal limitations, but it provides the highest non-invasive oxygen concentration available.

When should a non-rebreather mask be used over a nasal cannula?

A non-rebreather mask is indicated when the patient requires high-concentration supplemental oxygen — typically SpO2 below 90% despite lower-flow supplemental oxygen, or when high-flow oxygen is immediately indicated (severe trauma, suspected CO poisoning, respiratory distress, post-cardiac arrest, hemorrhagic shock). A nasal cannula at 1–6 LPM is appropriate for mild to moderate hypoxia in a comfortable patient. The NRB is the choice when maximum non-invasive oxygen delivery is the priority.

What oxygen flow rate should I use with the NRB mask?

10–15 LPM is the standard flow rate for a non-rebreather mask. The minimum flow rate should be set high enough to keep the reservoir bag inflated — if the bag collapses during inspiration, the patient is inspiring room air through the bag, defeating the purpose of the NRB. At 10–15 LPM, the reservoir bag should remain partially inflated throughout the respiratory cycle. Higher flow rates may be needed for patients with high respiratory rates or large tidal volumes.

How long will a Size D oxygen cylinder last with an NRB mask at 15 LPM?

A Size D cylinder contains approximately 14.6 cubic feet (approximately 415 liters) of medical oxygen. At 15 LPM, a Size D cylinder will last approximately 27 minutes. At 10 LPM, approximately 41 minutes. This duration guide is important for prehospital planning — providers should calculate estimated transport time and ensure sufficient oxygen is available, or reduce flow to a clinically appropriate minimum once the patient is stabilized.

Can a non-rebreather mask be used on an unconscious patient?

The NRB mask requires the patient to be spontaneously breathing — it is a passive delivery system, not a ventilation tool. For an unconscious patient who is not breathing adequately, a bag valve mask (BVM) must be used to provide positive-pressure ventilation. An NRB can be used on a spontaneously breathing unconscious patient (e.g., deeply obtunded but maintaining adequate respiratory effort), but should be monitored closely for aspiration risk and the need to transition to BVM or advanced airway management.