Create a realistic 3D architectural animation of a modern private house ventilation system. House size 12m x 16m, showing interior walls, kitchen, bathroom 4m x 3m with shower, toilet, sink and washing machine. Show transparent walls and visualize fresh air entering through supply vents, moving through rooms with blue airflow particles. Show polluted humid air leaving bathroom and kitchen through exhaust ventilation ducts with red airflow particles. Include ventilation pipes inside ceilings and walls, air circulation arrows, humidity removal, condensation prevention. Professional HVAC engineering presentation style, realistic 3D render, smooth camera movement, cutaway house view, 4K quality.
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