1. Pre-Donning Inspection (5-10 seconds)
- Check air supply: Verify cylinder pressure is ≥ 90% full (e.g., 300 bar for a full cylinder).
- Inspect components:
Test alarms: Activate the low-air alarm (should sound at ~25% capacity).
2. Don the Harness (15-20 seconds)
- Grip the SCBA:
- Swing onto back:
- Secure straps:
3. Seal the Facepiece (20-30 seconds)
- Loosen all head straps fully.
- Don the facepiece:
- Tighten straps in order:
- Conduct seal checks:
4. Activate Air Supply (5 seconds)
- Open cylinder valve fully (listen for airflow hiss).
- Connect regulator to facepiece (audible click confirms attachment).
- Breathe normally to confirm airflow.
5. Final Safety Check (10 seconds)
- Verify pressure gauge (≥ 200 bar for entry).
- Check mobility: Move head/shoulders – no restrictions.
- Buddy check: Have a teammate inspect straps/seals.
Pro Tips for Speed & Safety
- Practice: Regularly drill to reduce donning time to ≤ 1 minute.
- No shortcuts: Never skip seal checks – even minor leaks can be deadly in toxic environments.
- Emergency protocol: If alarm sounds during use, exit immediately.
Visual Aid
For training, use this sequence:
- Harness on → 2. Mask sealed → 3. Air on → 4. Go!
If you have any questions, please feel free to contact us via windy@muskwell.com!


