At BYD’s flagship electric vehicle battery production base in Shenzhen, Chinaway deployed a comprehensive real-time air quality monitoring system using 47 CW-RPC200(A) online particle counters. Installed at critical process nodes — electrode coating, cell assembly, and formation rooms — each unit feeds second-level particle count data into BYD’s proprietary MES platform. Integrated alarms trigger automatic HEPA filter replacement scheduling and airflow recalibration. Post-implementation, contamination-related downtime dropped by 41%, and audit pass rates for ISO 14644-1 Class 1000 certification rose from 82% to 99.7%. The solution also enabled predictive maintenance analytics, reducing unscheduled maintenance costs by 28% annually.