When sourcing a cabin filter machine, you must prioritize production efficiency and automation levels. Key specs include the pleating height range (typically 10-100mm), the maximum pleating width, and the production speed (pleats per minute). Ensure the machine features a high-precision PLC control system and a touchscreen interface for easy adjustment of pleat counts and dimensions. Additionally, verify the heating and embossing capabilities, as these are critical for maintaining the structural integrity of synthetic and activated carbon media.