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SKU: 20-350

Type: Chest Seal

Vendor: Safeguard Medical

FoxSeal™ Non-Vented Chest Seal — Twin Pack

Name: FoxSeal™ Non-Vented Chest Seal — Twin Pack
Brand: Safeguard Medical
SKU: 20-350
Price: 17.5 USD
Availability: InStock

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PRODUCT INFORMATION

FoxSeal™ by CELOX™ Medical · Non-Vented Chest Seal

FoxSeal™ Non-Vented Chest Seal — Twin Pack

Two sterile 5.1 × 5.2 in. occlusive chest seals in one flat pouch — an entry and an exit wound covered from a single package that fits an IFAK without folding. There is no valve: a corrugated, high-visibility peel tab lets you lift the edge to vent the chest, and the adhesive re-seals. Made by Medtrade Products, the maker of CELOX™, and distributed by Safeguard Medical.

2 seals per pouchNon-vented — vent by tabFlat-packed, no creaseRe-sealing adhesiveSterile · latex-free

A non-vented seal is the TCCC answer when no vented seal is at hand — and it only works if someone keeps watching the breathing and lifts the tab when it gets worse.

The short answer

What it is

A twin pack of sterile, non-vented occlusive chest seals, 5.1 × 5.2 in. each, with a peel tab for venting and re-sealing.

Use it for

Open or sucking chest wounds — both the entry and the exit wound. The TCCC Guidelines call for a vented seal first and a non-vented seal when no vented one is available.¹

How it's used

Wipe the skin, peel the liner, center the seal on the out-breath and press it down. If breathing worsens, lift the tab to vent, then re-seal.⁴

Who carries it

Law enforcement, military and EMS responders, and trained civilians who need two seals in the smallest possible space.

At a glance

Type

Non-vented, valve-free

Seals per pouch

Seal size

5.1 × 5.2 in. (13 × 13.2 cm)

Pouch

6.25 in. (15.88 cm) square

Venting

Corrugated peel tab, re-sealing adhesive

Wound coverage

Up to 15 cm long

Adhesion data

−18 °C to +55 °C (in vitro)

Item

REF 20-350

FDA

Class I, 510(k)-exempt

10 things to know about FoxSeal

What a non-vented seal is for, how to vent it, and the two warnings printed on the pouch.

01

Two seals in one pouch

Each sterile pouch holds two occlusive dressings, 5.1 × 5.2 in. (13 × 13.2 cm) each, so an entry and an exit wound are covered from one package.^4,5
02

Made by the maker of CELOX™

FoxSeal is manufactured by Medtrade Products Ltd — the company behind CELOX™ hemostatics — and distributed in the United States by Safeguard Medical as REF 20-350.^4,5
03

Flat, never folded

The seals ride flat in a 6.25 in. (15.88 cm) square pouch that fits an IFAK without folding.³ Medtrade's point: a dressing stored folded can carry a permanent crease that keeps it from sealing.⁶
04

No valve — the tab is the vent

FoxSeal is valve-free by design. A corrugated, high-visibility peel tab lets you lift the edge to vent the chest, and the adhesive re-seals afterward.^3,6 The pouch instruction: use the tab to vent and re-seal, if required.⁴
05

Where a non-vented seal fits

The TCCC Guidelines call for a vented chest seal on every open or sucking chest wound, and a non-vented seal when no vented one is available. Either way, the casualty is monitored for a developing tension pneumothorax and the seal is burped or removed if breathing worsens.^1,9
06

Why the watching matters

In swine with an open chest wound, vented and unvented seals both improved breathing at first. When air kept leaking into the chest, the unvented seal led to tension pneumothorax after about 1.4 L; the vented seal did not.⁸ A non-vented seal needs a responder who keeps reassessing and lifts the tab.
07

Adhesive for wet or hairy skin

Medtrade and Safeguard describe the adhesive as working on wet or hairy skin, with adhesion performance demonstrated at −18 °C (0 °F) and +55 °C (131 °F) in Medtrade's in-vitro testing.^3,6 Wipe dirt and fluid off the skin first — it is step one on the pouch.⁴
08

Covers wounds up to 15 cm long

Each seal is rated for injuries up to 15 cm in maximum length.³
09

Two warnings on the pouch

It is not meant to be used to improvise a three-sided (flutter-valve) dressing, and a decompression needle is never placed through it.⁴
10

Not evidence-based standard — and neither is any chest seal

The Evidence-Based Standard Devices & Adjuncts list has no chest-seal entries.² Absence from the list does not by itself mean a product was tested and failed. FoxSeal is sterile, not made with natural rubber latex, and listed with the FDA as a Class I, 510(k)-exempt occlusive wound dressing.^4,5,7

How to apply FoxSeal

The five steps on the pouch, inside the TCCC approach to an open chest wound.

1

Find every hole. Expose the chest and check the back, the sides and the armpits — the back is the wound people miss. Never pack gauze into a chest wound.
2

Cover it now. Put a gloved hand over the hole — or have the casualty use their own — while you tear the pouch open at any of the four notches.³
3

Wipe the skin. Wipe dirt and fluid from the skin around the wound.⁴
4

Grip the tab, peel the liner. Take out one FoxSeal, grip the tab and peel the clear liner to expose the adhesive.⁴
5

Center it on the out-breath. Place the dressing centered on the wound, adhesive side down — preferably as the casualty breathes out, when pressure inside the chest is lower.⁴
6

Press it down all around. Firmly press the dressing to the skin around the wound to seal it.⁴
7

Seal the second hole. If there is another wound, repeat with the second seal from the same pouch.⁴
8

Watch — and lift the tab if breathing worsens. Unconscious and breathing: recovery position. Conscious: a position of comfort, often sitting up. If breathing gets worse, lift the edge with the tab to vent, then re-seal, or remove the seal; trained providers decompress as the TCCC Guidelines direct — never through the dressing.^1,4

Train before you need it. FoxSeal is single use and made for trained emergency responders.⁴ Practice the out-breath placement and the tab vent on a chest seal application trainer, and keep the live pouch sealed in the kit.

Where it fits

Use it for

Open or sucking chest wounds when no vented seal is available¹
Entry and exit wounds — two seals in one pouch⁴
IFAKs and pouches where space is tight — the pouch stays flat³
Securing a water-impermeable cover over eviscerated abdominal organs that cannot be replaced; the TCCC Guidelines name a chest seal as one adhesive option¹

Not for

First choice when a vented seal is at hand — TCCC puts vented first¹
Improvising a three-sided (flutter-valve) dressing⁴
A decompression needle through the dressing⁴
Packing — never pack anything into the chest or abdomen
Routine use on a patient receiving positive-pressure ventilation — the NAEMSP position is that chest seals may be harmful there¹²

The evidence

No study has tested FoxSeal by name. These are the studies that define where a non-vented seal fits.

Study	Evidence type	What was studied	What it found
*Kheirabadi et al., J Trauma Acute Care Surg* 2013**	Animal · swine	Vented vs unvented seal on an open chest wound with ongoing air leak, 8 swine	Both seals improved breathing at first; the unvented seal led to tension pneumothorax after ~1.4 L of air, the vented seal prevented it
*Schauer et al., J Spec Oper Med* 2017**	Human · combat registry	Prehospital Trauma Registry, Afghanistan: 62 casualties with gunshot or puncture wounds to the chest	74.2% received a chest seal; most seals placed were not vented, despite the guideline change to vented seals
*Butler et al., J Spec Oper Med* 2013**	Expert review · guideline change	TCCC Guidelines Change 13-02 on open pneumothorax	Vented chest seal first; non-vented if no vented seal is available; monitor and burp, remove or decompress
*Kuhlwilm, J Spec Oper Med* 2021**	Expert review	Chest-seal studies compared with eight international guidelines	Vented seals appear superior; most guidelines prefer them, but some civilian guidelines do not
*Lyng et al. (NAEMSP), Prehosp Emerg Care* 2024**	Expert review · position statement	Structured literature review on EMS care of traumatic pneumothorax	EMS may consider a vented seal in spontaneously breathing patients; seals may be harmful with positive-pressure ventilation

Animal data drive the vented-first rule; the combat registry shows how often non-vented seals were still the ones placed.¹¹ Adhesion figures for FoxSeal are the manufacturer's in-vitro data.

How it compares

Other ways to put two seals — or one vented seal — in the kit.

	FoxSeal™ Twin Pack	SAM® Chest Seal Combo	Russell Chest Seal®	Sentinel™ Chest Seal
In the package	2 non-vented seals	2 seals — 1 valved, 1 non-valved	1 vented seal	1 vented seal + gauze wipe
How it vents	No valve — lift the peel tab to vent, then re-seal	TRUFLOW™ raised-dome one-way valve (valved seal only)	Four peripheral apertures in a laminar hydrogel dressing	Dual vents: blood out the lower vent, air out the upper
Seal size	5.1 × 5.2 in. (13 × 13.2 cm)	7 × 7 in. (17.8 cm), oval	8 × 6 in. (20.3 × 15.2 cm)	6.5 × 6.5 in. (DLA record)
Role under TCCC	When no vented seal is available	Vented seal first; non-valved for a second wound	Vented — first choice	Vented — first choice
FDA status	Class I, 510(k)-exempt	FDA-cleared, K102403	Class I, 510(k)-exempt	Class I, 510(k)-exempt
evidence-based standard	No — the list names no chest seal	No — the list names no chest seal	No — the list names no chest seal	No — the list names no chest seal

Designs and sizes from each manufacturer; the Sentinel's size from its DLA record. TCCC role per the TCCC Guidelines.¹

Build the system

Vented seals for first choice, the maker's hemostatic, a kit that carries FoxSeal, the trainer, and the rest of the IFAK.

Russell Chest Seal®

8 × 6 in. vented hydrogel seal

Sentinel™ Chest Seal

Dual-vent seal with acrylate adhesive

SAM® Chest Seal Combo

One valved, one non-valved seal

TacMed™ Patrol Trauma Kit

Patrol kit that carries a FoxSeal twin pack

TrueClot Chest Seal Trainer

Practice seal application — not for casualty care

CELOX™ Rapid Gauze

evidence-based standard hemostatic from the same maker

TMT™ Tourniquet

evidence-based standard limb tourniquet

Emergency Trauma Dressing

Pressure dressing for the bleeding you can wrap

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Questions buyers ask

▾Is FoxSeal evidence-based standard?

No. The Evidence-Based Standard Devices & Adjuncts list (15 December 2021) has no chest-seal entries, so no chest seal from any maker is evidence-based standard by name.² Absence from the list does not by itself mean a product was tested and failed.

▾Is a non-vented seal the wrong choice?

No. The TCCC Guidelines put a vented seal first and a non-vented seal next when no vented one is available, with close monitoring either way.¹ In animal testing, vented seals prevented tension pneumothorax better when air kept leaking into the chest,⁸ and most international guidelines prefer them — but some civilian guidelines do not consider a vented seal superior when other ways to relieve tension are at hand.¹⁰

▾How do I vent it?

Lift the edge with the corrugated tab to let air escape, then press it back down — the adhesive re-seals.^3,4,6 Removing the seal is also an option.

▾What if breathing gets worse after the seal is on?

Treat it as a possible tension pneumothorax: lift the tab to vent, or remove the seal. Trained providers decompress the chest as the TCCC Guidelines direct — never through the dressing.^1,4

▾Will it stick to a sweaty, wet or hairy chest?

The manufacturer describes the adhesive as working on wet or hairy skin, with in-vitro adhesion data at −18 °C and +55 °C.^3,6 Wipe dirt and fluid away first, and press the whole edge down.⁴

▾I'm a bystander without a chest seal. What do I do?

Cover the hole with a gloved hand, or have the casualty press their own hand over it. If you have tape and something airtight — a plastic wrapper or bag — you can improvise a cover, but it is hard to do well. Unconscious and breathing: recovery position. Conscious: let them find a position of comfort, often sitting up. Keep watching the breathing until EMS arrives. Whether civilians should carry chest seals at all is debated, and guidelines differ.¹⁰

▾Does a chest seal belong on a patient being ventilated with a bag?

Not routinely. The National Association of EMS Physicians states EMS may consider a vented seal in spontaneously breathing patients with an open pneumothorax, but that in patients receiving positive-pressure ventilation chest seals may be harmful and are not recommended.¹²

▾What exactly is in the pack?

One sterile foil pouch, REF 20-350, holding two FoxSeal occlusive dressings of 5.1 × 5.2 in. (13 × 13.2 cm) each.^4,5 One pouch covers an entry and an exit wound.

▾Can I cut it or tape it into a three-sided dressing?

No. The pouch warning states FoxSeal is not intended to be used to improvise a three-sided (flutter-valve) dressing.⁴ Apply it whole and vent with the tab.

Package & specifications

▾In the package — two sterile non-vented seals

2× FoxSeal™ occlusive chest seals, 5.1 × 5.2 in. (13 × 13.2 cm), each with a corrugated high-visibility peel tab and re-sealing adhesive
One flat sterile foil pouch, 6.25 in. (15.88 cm) square, with four tear notches — REF 20-350
Sterilized by irradiation. Single use. Not made with natural rubber latex.

▾Full specifications

Specification	Detail
Manufacturer	Medtrade Products Ltd (CELOX™ Medical) — Crewe, United Kingdom
U.S. distribution	Safeguard US Operating, LLC (Safeguard Medical)
Product	FoxSeal™ occlusive dressing for open chest wounds — non-vented, twin pack
Item number	REF 20-350 (manufacturer code FG05814491)
Contents	2 occlusive chest seals in one pouch
Seal size	5.1 × 5.2 in. (13 × 13.2 cm)
Pouch	6.25 × 6.25 in. (15.88 × 15.88 cm), four tear notches
Venting	Valve-free; corrugated, high-visibility peel tab lifts the edge to vent; adhesive re-seals
Adhesive	Re-sealing; described for wet or hairy skin; adhesion performance demonstrated at −18 °C (0 °F) and +55 °C (131 °F), in vitro (manufacturer)
Wound coverage	Injuries up to 15 cm maximum length
Sterility / use	Sterile (irradiation), single use
Latex	Not made with natural rubber latex
Warnings	Not for improvising a three-sided (flutter-valve) dressing; do not place a decompression needle through the dressing
FDA	Occlusive wound dressing, product code NAD, 21 CFR 878.4020 — FDA-registered, Class I (510(k)-exempt)
Packaging	Blue — Respiration in Safeguard Medical's RAMPART™ color-coded system
TCCC status	Non-vented chest seal — used when no vented seal is available, per the TCCC Guidelines; not evidence-based standard — the evidence-based list names no chest seal

▾References — 12 sources

Committee on Tactical Combat Casualty Care. Tactical Combat Casualty Care (TCCC) Guidelines, 1 May 2026.
Committee on Tactical Combat Casualty Care. Evidence-Based Standard Devices & Adjuncts, 15 December 2021.
Safeguard Medical. FoxSeal™ product pages (items 20-300 and 20-350) — capabilities, product attributes and packaged size, safeguardmedical.com.
Medtrade Products Ltd / Safeguard US Operating, LLC. FoxSeal™ pouch labeling, instructions for use and warnings, REF 20-350, FG05814491, issue date 22 February 2024.
National Library of Medicine. AccessGUDID device record: FOXSEAL – CMS, catalog 20-350, version FG05814491, primary DI 15060206630700, Medtrade Products Limited; device size 5.12 × 5.24 in.
CELOX™ Medical (Medtrade Products Ltd). FOXSEAL™ product information — crease-free storage, valve-free design, re-sealing adhesive, in-vitro adhesion data on file. celoxmedical.com.
U.S. Food and Drug Administration. Product classification NAD (Dressing, Wound, Occlusive), 21 CFR 878.4020, Class I, 510(k)-exempt; Establishment Registration & Device Listing, Medtrade Products Ltd, Crewe, UK.
Kheirabadi BS, Terrazas IB, Koller A, et al. Vented versus unvented chest seals for treatment of pneumothorax and prevention of tension pneumothorax in a swine model. J Trauma Acute Care Surg. 2013;75(1):150–156.
Butler FK Jr, DuBose JJ, Otten EJ, et al. Management of open pneumothorax in Tactical Combat Casualty Care: TCCC Guidelines Change 13-02. J Spec Oper Med. 2013;13(3):81–86.
Kuhlwilm V. The use of chest seals in treating sucking chest wounds: a comparison of existing evidence and guideline recommendations. J Spec Oper Med. 2021;21(1):94–101.
Schauer SG, April MD, Naylor JF, et al. Chest seal placement for penetrating chest wounds by prehospital ground forces in Afghanistan. J Spec Oper Med. 2017;17(3):85–89.
Lyng JW, Ward C, Angelidis M, et al. Prehospital trauma compendium: traumatic pneumothorax care — position statement and resource document of NAEMSP. Prehosp Emerg Care. Published online 4 December 2024. doi:10.1080/10903127.2024.2416978.

Genuine FoxSeal™ — Medtrade Products Ltd

Sourced direct from the manufacturer or an authorized master distributor. Ships from MED-TAC International, South Florida, US of A — clinician-founded, veteran-led, SDVOSB-certified.

Built around MARCH. Every kit we sell maps to the MARCH protocol — Massive hemorrhage, Airway, Respiration, Circulation, Hypothermia. Learn the sequence in our complete MARCH guide.

SPECS & MEASUREMENTS

Specifications coming soon. Contact us for detailed product information.

CLINICAL RATIONALE

Chest Seals in Thoracic Trauma

Chest seals are critical life-saving tools for treating open chest wounds (sucking chest wounds) that disrupt the negative pressure needed for normal breathing.
When air enters the pleural space through a penetrating injury, it prevents the lung from fully expanding and may lead to a tension pneumothorax — a life-threatening condition if not addressed promptly.
Properly applied chest seals restore intrathoracic pressure balance and allow the injured lung to re-expand, buying vital time until definitive care or decompression is available.

1. Vented Chest Seals

Clinical Rationale (Vented):

Vented chest seals feature one-way valves or channels that allow trapped air and fluids to escape from the chest cavity while preventing further air entry.
This controlled venting mechanism reduces the risk of developing a tension pneumothorax and is recommended by the Committee on Tactical Combat Casualty Care (CoTCCC) for most open thoracic injuries when the vent remains unobstructed.
In tactical and emergency medical settings, vented seals maintain proper intrathoracic pressure dynamics and help stabilize respiration during evacuation.

Allows air and blood to escape while blocking additional air entry
Recommended by CoTCCC for most penetrating chest wounds
Prevents progression to tension pneumothorax
Effective during movement and transport phases

2. Non-Vented Chest Seals

Clinical Rationale (Non-Vented):

Non-vented chest seals provide a fully occlusive barrier that prevents any external air from entering the pleural cavity.
These are preferred when environmental factors — such as dust, debris, heavy clothing, or complex wound locations — could obstruct a vent or prevent it from functioning properly.
Non-vented models are especially effective when there are multiple wounds or when both sides of the chest are compromised.

Creates an airtight seal to stop further air intrusion
Ideal for contaminated or complex wound environments
Preferred for posterior or multiple thoracic injuries
Simple and reliable under stress conditions

3. Twin Pack / Dual Application

Clinical Rationale (Twin Pack):

Twin chest seal packs are designed for simultaneous coverage of entry and exit wounds or multiple penetrating thoracic injuries.
Applying seals to both anterior and posterior wounds prevents air intrusion from either side and ensures consistent intrathoracic pressure stabilization.
This configuration allows medics and responders to treat through-and-through injuries quickly and efficiently without improvisation.

Enables rapid treatment of entry and exit wounds
Maintains consistent chest pressure across both sides
Optimized for tactical and prehospital trauma management
Reduces need for multiple packages or improvised seals

4. Training Chest Seals

Clinical Rationale (Training):

Training chest seals replicate the adhesive strength and venting design of operational models using non-sterile materials.
They are intended for classroom, simulation, and scenario-based instruction, allowing responders to practice correct placement, adhesion, and vent inspection without wasting live medical gear.
Consistent repetition with realistic trainers develops muscle memory and speed during actual trauma incidents.

Simulates vented or occlusive seal behavior for realistic training
Promotes correct placement and adhesion technique
Preserves sterile operational supplies
Ideal for EMT, tactical, and civilian responder courses

Clinical Summary

Chest seals play a pivotal role in preventing death from tension pneumothorax, one of the leading causes of preventable trauma mortality.
Both vented and non-vented designs serve distinct operational needs, while twin and training packs ensure preparedness across all care phases — from education to battlefield or civilian emergencies.

Vented: Allows controlled egress of trapped air; standard CoTCCC-recommended choice.
Non-Vented: Fully occlusive; best for debris-rich or posterior wound sites.
Twin Pack: Provides coverage for through-and-through injuries.
Training: Non-sterile practice tool for skill retention and readiness.

By re-establishing chest wall integrity and controlling air movement, chest seals restore lung expansion and stabilize respiratory mechanics until advanced medical care is available.

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FREQUENTLY ASKED QUESTIONS

Is the FOX Chest Seal vented or non-vented?

The FOX Chest Seal is a vented design. The venting mechanism is provided by the corrugated, high-visibility peel tab, which creates a channeled pathway for air egress during exhalation while the hydrogel adhesive maintains the peripheral seal during inhalation. This simple no-valve design has no mechanical components to fail or require specific orientation, making it reliable across the seal's operating temperature range of 0°F to 131°F (-18°C to +55°C). The design also functions as a re-sealable wound burping mechanism.

What wound size can the FOX Chest Seal cover?

The FOX Chest Seal is designed to cover penetrating injuries up to 15 cm (approximately 6 inches) in maximum length. The deployed seal measures 5" × 5", providing adequate coverage for most gunshot wounds, stab wounds, and shrapnel injuries to the thorax. For wounds larger than 15 cm, or wounds with irregular margins from blast injuries, consider the HALO XL or a larger format seal. The FOX Twin Pack provides two seals for simultaneous treatment of entry and exit wounds.

How does the FOX Chest Seal adhesive perform in extreme conditions?

The FOX Chest Seal uses a medical-grade hydrogel adhesive that maintains strong adhesion strength at both temperature extremes: -18°C (0°F) and +55°C (131°F). Testing has confirmed adhesion performance remains consistently above specification standards across these temperature ranges. The adhesive bonds effectively to skin contaminated with blood, sweat, hair, sand, or water. All dressings have been tested while carried flat, rolled, and folded inside an IFAK over an 8-week period at extreme temperatures without loss of adhesion performance.

What is the corrugated peel tab and how does it help during an emergency?

The corrugated peel tab on the FOX Chest Seal serves multiple functions. Its corrugated (ridged) surface provides a tactile gripping surface that can be located and grasped quickly under stress, even with gloved hands. When the seal is first applied, the tab creates the venting channel. If tension pneumothorax develops after seal application, the corrugated tab allows the responder to quickly lift the seal edge ('burp' the wound) to release pressure, then re-seal. The high-visibility color of the tab ensures it is easily located for this purpose. This single-tab design simplifies the burping procedure compared to designs requiring the responder to find and lift a specific corner of the seal.

Why is the FOX Chest Seal Twin Pack appropriate for law enforcement and SWAT applications?

Law enforcement tactical units and SWAT teams face the same penetrating chest trauma risks as military personnel when responding to active shooter situations, room entries, and dynamic incidents. The FOX Chest Seal Twin Pack's compact footprint (6.25" × 6.25" × 0.125" packaged, 1.5 oz for both seals) fits easily into SWAT IFAK configurations, plate carrier medical pouches, and duty bag trauma kits. The simple no-valve mechanism reduces training burden for officers who may not receive the same medical training depth as military medics. FDA Listed and CE Marked construction ensures regulatory compliance for law enforcement procurement.