This simple add-on hooks onto the printer’s rear intake grating to help stabilize humidity during prints. Just place a damp sponge, rag, or cut-to-fit humidifier wick inside the container and let it work passively while the intake fan runs. Re-wet as needed to maintain your target RH. Note: Keep it damp, not soaked—this area sits above the shaker oven’s power and data lines, so use common sense and operate at your own risk. While results vary, light testing shows this mod helps reduce humidity loss caused by the exhaust fan. It’s best used alongside a room humidifier for consistent results. This is a third-party, aftermarket product and is not affiliated with, endorsed by, or approved by xTool. Use of this product may fall outside manufacturer specifications. Bonsai Print Garden makes no warranties and is not liable for damage, malfunction, voided warranties, or losses resulting from use or misuse of this product. Use at your own risk. You can purchase domestically from BPG3d.com.