Enclosed 3D-Printer VOC Activated-Carbon Residence-Time & Negative-Pressure Sizer

Deterministic Gas-phase Empty Bed Contact Time (EBCT = V_carbon / Q_air >= 0.15s) Wheeler-Jonas breakthrough curve + chamber sensible heat retention balance engine (.json, .pdf, .stl) built for Bambu Lab, Voron, Prusa, BOFA — zero-upload ephemeral Wasm RAM execution.

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