Keep your laser engraving projects safe with the Auto Fire Extinguishing System. Integrated with H2 Series printers, it detects flames with built-in AI sensors and automatically releases CO₂ for rapid fire suppression—even during power loss.
Designed for peace of mind, the Auto Fire Extinguishing System offers full integration with the Bambu Lab H2 Series Laser Modules. It automatically detects and extinguishes fire incidents without your intervention, using intelligent safety logic and CO₂ suppression for efficient, residue-free performance.
Key Features
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Automatic Detection & Response – AI cameras and flame sensors trigger immediate CO₂ discharge to suppress fire safely inside the print chamber.
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Manual Emergency Control – Equipped with a manual handwheel for power-outage scenarios to ensure maximum protection at all times.
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Smart Gas Management – Adaptive extinguishing minimizes gas waste for efficient, eco-conscious operation.
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Seamless H2 Integration – Designed exclusively for the H2D, H2D Pro, and H2S laser printer series.
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Easy Installation – Step-by-step installation guide and official setup video available on the Bambu Lab Wiki.
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Seamless Integration:
Fully Automated Fire Extinguishing
The Auto Fire Extinguishing System is seamlessly integrated into the H2 series' comprehensive safety behavior logic. It leverages the AI camera and flame sensors embedded in the H2 series machine to detect fire incidents and quickly react by injecting CO2 gas into the chamber, ensuring fully automatic fire suppression.


Manual Safety Mechanism:
Your Backup in a Power Loss
A dedicated manual safety mechanism provides a critical backup. In the event of a power loss, an emergency manual trigger is available to activate the extinguisher, even when there's no electricity to the system.

Installation Guide
Please refer to the installation guide for the Auto Fire Extinguishing System available on Bambu Lab Wiki. For a visual walkthrough, we also recommend watching the step-by-step installation video.
In the Box

Product Specifications
| Materials | Plastic, Metal | Packaging Size | 385*218*130mm |
| Color | Gray, Black | Packaging Weight | 1.35 kg |
Compatibility
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H2D/H2D Pro (Firmware 01.02.00.00 or later)
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H2S (Firmware 01.01.00.00 or later)
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Bambu Suite 01.01.01.50 or later
Important Safety Notice
This system does not guarantee 100% fire suppression. Always follow standard safety procedures and never leave your printer unattended during laser operation.
Technical Specs
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Materials: Plastic, Metal
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Color: Gray, Black
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Dimensions: 385 × 218 × 130 mm
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Weight: 1.35 kg
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Gas Cylinder: CO₂, 0.6 L (TR21×4 thread, 15 MPa working pressure)
Includes:
1 × Auto Fire Extinguishing System, 1 × Gas Cylinder
Frequently Asked Questions
1. What printers is the extinguisher compatible with?
A: The extinguisher is compatible with H2D, H2D Pro and H2S.
2. What firmware versions of printers and software is the extinguisher compatible with?
- H2D/H2D Pro: O1.02.00.00 or later.
- H2S: 01.01.00.00 or later.
- Bambu Suite: 01.01.01.50 or later.
3. Does the extinguisher guarantee a 100% success rate when a fire happens?
A: Please always remember the extinguisher does not guarantee a 100% success rate in putting out a fire! You should always keep in mind to follow all safety protocols and do not leave the printer while a laser task is in progress!
4. Why do I need to connect the extinguisher to an independent power source?
A: This is to make sure the extinguisher functions during an unexpceted power outage if connected to the same power source as the printer.
5. Can I refill a used gas cylinder?
A: No. The gas cylinder is a one-time consumable. Please purchase a new replacement.
6. What type of gas cylinder works with the extinguisher?
A: The Extinguishing System includes one gas cylinder at the time of purchase. Once the gas cylinder has been used, customers can choose to purchase a replacement from our official store or obtain a compatible cylinder from a third-party supplier. Please make sure the replacement gas cylinder meets the following specifications:
- Thread type: TR21X4
- Volume: 0.6 L
- Diameter: 60 mm
- Length: ≤ 360 mm
- Working pressure: 15 MPa
7. There appears to be some dents on the gas cylinder. Can I still use it?
A: Do not use the gas cylinder if it is damaged in any way as it may compromise its function and cause it to fail to extinguish a fire.
8. If a power outage happens and affect the extinguisher, how do I extinguisher a fire?
A: You can use the emergency handwheel to manually extinguisher the fire. Please note that this method can only be used during a power outage. Do not touch the emergency handwheel in any other circumstances!
9. For more information about FAQ, refer to the official wiki.



