你是否注意过中央空调内部的清洁问题？虽然安装中央空调为我们的生活带来许多便捷，但它使用一段时间之后，风道内会积尘。如果不对中央空调定期进行维保，那它将会影响我们的身体健康。
Have you ever noticed any cleaning issues inside the central air conditioning system? Although installing central air conditioning brings many conveniences to our lives, after using it for a period of time, dust will accumulate in the air ducts. If the central air conditioning is not regularly maintained, it will affect our physical health.
一、中央空调内部积尘的危害
1、 The Harm of Dust Accumulation inside Central Air Conditioning
（一）滋生细菌，传染疾病：中央空调的风道连接出风口、回风口与室内形成相对封闭空间。风道内，肉眼看不见的灰尘和病菌会随着空调风被吹到房间各个角落，变成室内空气的污染源。而空调循环风会致使某一个房间的病菌被吹到其他房间，最终形成交叉感染。
（1） Breeding bacteria and infectious diseases: The air ducts of central air conditioning are connected to the air outlet and return air outlet, forming a relatively enclosed space with the indoor environment. In the air duct, invisible dust and bacteria will be blown to various corners of the room with the air conditioning wind, becoming a source of indoor air pollution. The circulating air of air conditioning can cause the bacteria in one room to be blown to other rooms, ultimately forming a cross infection.
（二）风阻加大、损耗能源：空气在风道内流动，由于粘性及流体的相对运动产生了内摩擦力，因而空气在风道内流动过程中，就要克服这种阻力而额外消耗能量。
（2） Increased wind resistance and energy loss: When air flows in the duct, internal friction is generated due to viscosity and relative motion of the fluid. Therefore, during the flow of air in the duct, this resistance needs to be overcome and additional energy is consumed.
二、定期检查
2、 Regular inspection
在使用中央空调时，卫生问题是我们关注的一大要点。如果定期做好设备维保检查，不仅可以避免这些室内污染问题，还可以延长空调的使用寿命，保证空调的运转效率，大大降低空调故障率。
When using central air conditioning, hygiene is a major concern for us. If regular maintenance and inspection of equipment are carried out, not only can these indoor pollution problems be avoided, but also the service life of the air conditioning can be extended, ensuring the operating efficiency of the air conditioning, and greatly reducing the failure rate of the air conditioning.