Central Air Conditioning Fan Coil UnitLong-term recirculation of indoor air causes dust, soot, bacteria, and other particles to accumulate on the aluminum fins and impeller. The accumulation of fibrous matter and other dirt can block the airways, leading to a decrease in air volume and severely affecting the heat exchange and cooling efficiency of the central air conditioning system. This area is dark and humid, a breeding ground for bacteria, and the presence of mold and legionella can pollute the air, posing health risks. If the central air conditioning system is not cleaned in a timely manner, not only will the air exchange effect be reduced, but accumulated dust can easily lead to bacterial growth, and the air ducts can become a cradle for parasites and insects. Jining GreentechChemical IndustryTechnology Co., Ltd. recommends you clean the fan coil regularly.