CBRN Patient Isolation Litter

Isolate and transport contaminated casualties while reducing cross-contamination risk. The ISOVAC C3L™ is a portable Patient Isolation Unit (PIU) designed to prevent CBRN particulate cross-contamination—including exposure scenarios involving a broad range of toxic industrial chemicals (TICs), chemical warfare agents (CWAs) and biological hazards—between the patient and the external environment.

During operation, the C3L™ maintains a negative differential pressure environment to contain and isolate an infected or contaminated patient. Directional airflow is introduced at the head end and exhausted at the foot end via a Powered Air Purifying Respirator (PAPR), with CBRN filtration at both points using standard NATO 40 mm thread connectors.

Why teams choose the C3L™

• Negative-pressure containment: internal environment operates under negative differential pressure to contain and isolate the patient.
• High protection factor: protection factor of 26,000:1 during operation with active airflow and CBRN filtration.
• Rapid setup: assembly can be completed in less than 1 minute by a single operator, including in extreme heat/cold environments.
• Directional airflow design: airflow is introduced at the head end and exhausted at the foot end via PAPR.
• CBRN filtration at intake and exhaust: filtration specified as CBRN with HE/P100 particulate performance (99.99% @ 0.3 µm).
• NATO-standard interfaces: all filter locations on the unit and PAPR utilise the NATO 40 mm thread connector.
• Full-body clinical access: glove ports throughout the unit plus medical tube ports and integrated pass-through ports.
• Enhanced visibility: flexible envelope optimises patient visibility, offering unrestricted view of 100% of the patient from top and side vantage points.
• Reduced patient heat-stress: breathable envelope fabric designed to reduce patient heat stress while protecting against multiple threat forms (liquid, aerosol, vapour).
• Standards-based material claims: envelope fabric is component material certified to NFPA 1994-2012 (Class 3), shown to meet/exceed US Military TPV requirements (TOP 8-2-501), and meets ASTM F1671M-13 for blood borne pathogen penetration resistance.

Where the C3L™ fits

• Field casualty movement: rapid patient/casualty isolation transport in the field.
• Medevac and patient transport platforms: isolated transport on aircraft, ambulances, ships, or any vehicle capable of safely transporting a patient on a standard litter.
• Facility workflows: temporary isolation of patients within hospitals or other medical facilities.

Access, ports and patient retention

• Glove access: 12 glove arms total (6 per side) to support access to the patient during transport.
• Medical tube ports: various sized ports for a range of medical tubing.
• Pass-through ports: 6 pass-through ports to insert items into the unit during use.
• Patient restraint: 2 pairs of leg straps, 1 waist strap and 1 chest strap.
• Spine board compatibility: optional use (loaded in with patient).

Deployment and transport configuration

• Collapsible and portable: fully collapsible and transportable by two operators.
• Carry straps: 8 integral carry straps (4 per side).
• Litter attachment: secured using external strapping on the bottom of the unit (compatible with multiple platforms such as gurney/stretcher).
• Support structure: three rib support structures across the unit and three spine support structures from head to foot ends.

C3L™ key specifications

• Colour: olive
• Deployed size (approx.): 56 cm (W) × 226 cm (L) × 56 cm (H)
• Deployed weight (approx.): 9.1 kg
• Operating volume (without patient): 630 L
• Air exchange rate: 18 to 21 air exchanges per hour
• Operating differential pressure: 0.55 inH2O (approximately 0.14 kPa)
• CO2 build-up at head (average): 2689 ppm
• Air supply ports: 4 intake ports; 3 exhaust ports
• Zipper: pressure seal, gas & liquid tight; suitcase-style opening for patient load/unload
• Filtration (intake and exhaust): CBRN with HE/P100 particulate (99.99% @ 0.3 µm)
• Runtime (blower, nominal): 7–10 hours with fresh BA-5800; 2–4 hours with NiMH rechargeable batteries
• Operating temperature (isolator): –25 °C to +55 °C
• Patient weight capacity (manufacturer stated): 159 kg (carry straps); 544 kg (NATO litter)
• Patient height capacity (manufacturer stated): 1.9 m nominal / 2.0 m maximum
• Boxed size (approx.): 61 cm × 61 cm × 36 cm
• Shelf life / storage: 5 years, sealed packaging, room ambient conditions

Request a quote from J3Seven

J3Seven can help you specify a C3L™ configuration that matches your casualty extraction workflow—platform compatibility (NATO litter/gurney/stretcher), filter and PAPR integration, battery strategy (runtime and swap plan), and training/SOP alignment. Contact us for pricing, availability, and deployment guidance.

Frequently asked questions

What is the C3L™ designed to do?

The C3L™ is designed as a portable Patient Isolation Unit (PIU) to prevent CBRN particulate cross-contamination (including TICs, CWAs and biological hazards) between the patient and the external environment during isolation and transport.

Is the C3L™ negative pressure?

Yes. During operation, the internal environment experiences a negative differential pressure to contain and isolate the patient.

How fast can it be deployed?

Assembly can be completed in less than 1 minute by a single operator.

How do clinicians access the patient during transport?

The C3L™ provides glove ports throughout the unit (12 glove arms total), plus medical tube ports and integrated pass-through ports for supplies.

What transport platforms does it support?

It is intended for rapid field transport and for isolated transport on vehicles capable of safely transporting a patient on a standard litter (including aircraft, ambulances and ships). It also supports temporary isolation in medical facilities.

How long does it operate?

The stated operational duration is 7–10 hours (nominal) with a fresh BA-5800 battery and can be extended via battery swap; NiMH rechargeable batteries are listed at 2–4 hours nominal.