Anesthesia Machine Tests | HME Filter & N2O safety mechanism ( Part 8 )

In this Part 8 of the Anesthesia Machine Series, we demonstrate the Morning Pre-Use Machine Test on a modern Dräger anesthesia workstation, a critical safety step before starting any OT list.
You will learn how to check for leaks, verify flow accuracy, and confirm the readiness of the breathing system.

We then explain the HME (Heat & Moisture Exchanger) filter
its purpose, placement, and why it is essential for maintaining humidity, preventing heat loss, and reducing infection risk.

Finally, we discuss the safety mechanisms of anesthetic gases, including N₂O fail-safe systems, pin index safety system (PISS), color coding, and pressure-related protections.

This video is highly recommended for Anesthesia Technologists, OTT students, Biomedical Engineering students, and anyone working in the operating room.

👉 Watch the full Anesthesia Machine Playlist here:
ANESTHESIA MACHINE:    • ANESTHESIA MACHINE  

00:00 – Morning Pre-Use Test
02:42 – HME (Heat & Moisture Exchanger) Explained
05:47 – Safety Mechanisms of Gases (Including N₂O)
📌 Special thanks to Sir Awais Ashfaq, Biomedical Engineer, for continuous support and enabling educational demonstrations on Hamza’s MedScope.
⚠️ Disclaimer:
This video is for educational and training purposes only.
Always follow hospital protocols, manufacturer guidelines, and senior anesthesia consultants during clinical practice.
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