Closed Circuit SCBA

Learn More About a Closed Circuit SCBA

Closed Circuit Self-Contained Breathing Apparatus (SCBA), also known as rebreathers, are advanced life support systems designed to provide long-duration respiratory protection in IDLH (Immediately Dangerous to Life or Health) environments. By recycling exhaled air, removing carbon dioxide, and replenishing oxygen, these systems enable extended operations of up to 4 hours. Ideal for mine rescue, fire departments, Hazmat, military and law enforcement, a rebreather is essential for missions where time and safety are critical. 

Why Choose a CSE Closed-Circuit SCBA

The BioPak 240R from CSE Corporation is a leading rebreather solution, and is the only US-made rebreather that’s approved by NIOSH, MSHA, CE, and more. Built for high-stakes environments, a CSE closed circuit SCBA is engineered with mission-critical performance in mind. These systems are designed to be rugged yet lightweight, offering a streamlined, ergonomic fit that minimizes fatigue during long-duration use. With features like intuitive operation, reduced breathing resistance, and minimal tubing for fewer potential leak points, CSE’s closed circuit SCBAs make it easier for users to focus on the task at hand, not the gear on their back.

Ease of maintenance and operational readiness set CSE apart. From factory-packed scrubbers that allow for “load and go” convenience to fast benching times and no mandatory rebuilds, CSE’s rebreathers are designed to reduce downtime and lower total cost of ownership. They’re fully customizable for different mission profiles and come with comprehensive training options to ensure your team is always prepared.

 

FAQs

Closed Circuit vs Open Circuit SCBA?

Closed circuit SCBAs, often called rebreathers, recycle the user’s exhaled breath by removing carbon dioxide and replenishing oxygen. This allows for extended use (up to four hours or more), making them ideal for long-duration operations. Open circuit SCBAs, by contrast, release exhaled air into the atmosphere and are typically limited to shorter durations (30–60 minutes). Closed circuit systems are more complex but offer significant advantages in endurance and operational efficiency.

How does a closed circuit SCBA operate?

A closed circuit SCBA works by capturing the exhaled breath, removing carbon dioxide through a chemical scrubber, and then adding oxygen back into the breathing loop. This “closed” system minimizes gas use and allows the wearer to operate in Immediately Dangerous to Life or Health (IDLH) environments for extended periods, often up to four hours.

Who uses closed circuit SCBAs?

Closed circuit SCBAs are used in industries and operations that demand long-duration respiratory protection in hazardous or IDLH environments. Common markets include mining, tunneling, transportation, general industrial, and first responder/military sectors. These users rely on closed circuit systems when safety, endurance, and operational reliability are critical to mission success.

How much does a closed circuit SCBA cost?

The cost of a closed circuit SCBA varies depending on the features, certifications, and level of customization. Generally, these systems are a higher upfront investment compared to open circuit SCBAs due to their advanced design and longer operational capacity. However, the long-term value—including reduced gas use, lower maintenance needs, and extended service life—makes them a cost-effective solution for demanding applications. Find a distributor for CSE products today.