Is the Bambu Lab P2S Exhaust Fan Kit Worth the Investment? A Comprehensive Installation & Performance Review
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Time to read 4 min
For every Bambu Lab P2S user, managing printing fumes efficiently is a top priority—and the P2S exhaust fan kit has emerged as a key solution to this challenge. In this guide, we break down everything you need to know about the official Bambu Lab P2S chamber exhaust fan kit, from its core components to real-world performance, to help you decide if it’s the right fit for your 3D printing setup.
Table of contents
1. Core Components: Why the P2S Exhaust Fan Kit’s Circuit Board Matters Most
2. Installing the P2S Exhaust Fan Kit: Key Steps & Critical Details
Preliminary Disassembly
Backplate Replacement
Assembling the P2S Exhaust Fan Kit
Final Setup
3. Real-World Performance of the P2S Exhaust Fan Kit
4. Conclusion: Is the P2S Exhaust Fan Kit Worth Buying?
For Casual/Convenience-Focused Users
For DIY/Value-Focused Users
A Note for Performance-Seeking Users
1. Core Components: Why the P2S Exhaust Fan Kit’s Circuit Board Matters Most
The official P2S exhaust fan kit consists of three primary parts: a flexible backplate, a high-flow exhaust fan, and a proprietary circuit board—and it’s the circuit board that makes this kit indispensable for many users.
Like most buyers, the sole reason I invested in the kit was to unlock the hidden “Exhaust Fume Extraction” setting on the Bambu Lab P2S. Without installing this circuit board, the P2S only offers an “Internal Circulation” option for post-print air purification—no P2S exhaust functionality at all. This single component is the backbone of the kit, as it enables the automated P2S chamber exhaust fan operation that sets the official kit apart from DIY alternatives.
2. Installing the P2S Exhaust Fan Kit: Key Steps & Critical Details
Installing the exhaust fan kit is straightforward but requires attention to small details to ensure optimal performance of your P2S chamber exhaust fan. Here’s a step-by-step breakdown of the process:
Preliminary Disassembly
Start by removing the filament spool holder and feeder. One critical tip: a hidden screw requires gentle forward prying to access, and an additional screw is concealed inside the unit—don’t overlook this, as it’s essential for safe disassembly before mounting the P2S exhaust fan kit.
Backplate Replacement
Swap out the original backplate with the flexible one included in the kit. Note that screws vary by position—always match screws to their designated holes to avoid loose fittings that could compromise the P2S chamber exhaust fan’s airflow.
Assembling the P2S Exhaust Fan Kit
- Printed Parts Prep: The kit includes parts that require self-printing (I experienced a cracked part during installation, so prep ahead to avoid delays).
- Fan Orientation: When installing the fan, ensure the logo side faces outward—reversing it will drastically reduce the P2S chamber exhaust fan’s effectiveness.
- Sponge Sticker Fit: Apply the included sponge stickers, then press all components firmly into place (the foam creates a tight seal, so extra pressure is needed).
- Hood Modifications: The official hood for the kit is customizable—many enthusiasts modify its diameter or direction for better airflow, so you don’t have to stick to the stock design.
- Screw Care: The kit includes exactly enough screws (no spares), so keep track of every piece during installation.
Final Setup
After installing the P2S exhaust fan kit and attaching the ducting, leave 25cm (9.8 inches) of clearance at the back of the P2S. You may opt for the official air duct (included in some bundles) based on your space constraints. Finish by connecting the six-pin cable, and the P2S exhaust fan kit is ready to use.
3. Real-World Performance of the P2S Exhaust Fan Kit
Once installed, the Bambu Lab P2S unlocks the “Exhaust” option in the post-print air purification settings—its biggest selling point.
"The P2S exhaust fan has strong airflow, which is decent, but it’s not as effective as an exhaust fan mounted on a heightening frame. The main advantage is that the P2S chamber exhaust fan kit operates automatically, with no manual intervention required."
Before the official P2S exhaust fan kit launched, DIY solutions (e.g., P2S exhaust fans on heightening frames or vented through the bottom-left port) were common—but all required manual fan operation. The P2S chamber exhaust fan kit simply automates this process, eliminating the need to toggle the P2S exhaust fan on/off manually.
Until now pricing for the full P2S exhaust fan kit (with backplate) has not been listed on Bambu Lab’s US official website (may be you can check for the latest USD pricing)—it’s important to note the kit’s value centers solely on automated P2S exhaust functionality, as the hardware itself has minimal production costs.
4. Conclusion: Is the P2S Exhaust Fan Kit Worth Buying?
For Casual/Convenience-Focused Users
If you prioritize hassle-free operation and don’t want to tinker with DIY P2S exhaust setups, the official P2S chamber exhaust fan kit is a solid choice. Its factory-grade compatibility ensures reliable automated P2S exhaust fan operation, with no extra effort needed.
For DIY/Value-Focused Users
If you have strong hands-on skills, a $20-30 (reference price—verify on Bambu Lab US site) budget can build a more robust P2S exhaust system with better airflow than the official kit, offering higher value than the stock P2S chamber exhaust fan kit.
A Note for Performance-Seeking Users
For those chasing maximum fume extraction performance, we suggest consider the FNATR system alongside the P2S exhaust fan kit. FNATR is a high-efficiency aftermarket ventilation solution designed to pair with the P2S chamber exhaust fan, delivering enhanced airflow and filtration for users who demand top-tier fume removal—ideal for industrial or high-volume 3D printing environments where the stock P2S exhaust fan kit’s performance isn’t sufficient. That's why we decide to offer it to our Call3D customers.
In summary, the P2S exhaust fan kit excels at “factory compatibility + automated convenience” but lacks standout value. The P2S chamber exhaust fan kit is worth it if you prioritize ease of use; otherwise, DIY P2S exhaust setups or FNATR offer better performance for the price.
