Declining Airflow and Rising Static Pressure Signal Time for HVAC Replacement

https://sacramento-precision-hvac-affordable-sac-sac-ca5294.zenbloomer.com/posts/charge-levels-within-20-percent-of-manufacturer-specs-protect-hvac-efficiency-during-refrigerant-transitions

Your HVAC system needs replacing when airflow drops significantly and static pressure rises despite ductwork maintenance, indicating the core compressor and heat exchanger have deteriorated beyond repair