Dirty or blocked air ducts can make your air conditioning system work harder than necessary. When dust, dirt, debris, and other particles build up inside the ductwork, airflow can become restricted. Your AC may then need to operate for longer periods to maintain the desired indoor temperature, which can affect cooling performance and energy efficiency. Regular duct cleaning can help i... https://cleannow.ae/why-ac-works-harder-when-ducts-are-blocked