Breathing Apparatus 💯

: These recycle your breath. A "scrubber" removes carbon dioxide, and sensors add fresh oxygen back into the loop. This is much more efficient—a 2-liter tank on a rebreather can last up to 8 hours, compared to just 1 hour for a standard scuba tank. 2. Evolution of Firefighting Tech

: These are standard for firefighting. You breathe in compressed air from a tank on your back and exhale it directly into the atmosphere. They are simple and reliable but limited by the tank's capacity, typically providing about 30–45 minutes of air. breathing apparatus

Breathing apparatus (BA) technology has evolved from crude 19th-century mining tubes to sophisticated life-support systems used by firefighters, divers, and rescue teams. Whether it’s an (Self-Contained Breathing Apparatus) used in fires or SCUBA for the ocean, these devices allow humans to operate in "IDLH" (Immediately Dangerous to Life or Health) environments. 1. The Core Systems: Open vs. Closed : These recycle your breath

The history of firefighting BA highlights some strange early attempts: They are simple and reliable but limited by

Modern breathing apparatus generally falls into two categories based on how they handle your exhaled breath: