Some time ago I admitted a lot of patients, most of them came because of fever and cough. I found that there were many patients with lung infections, and I found that many of them were caused by dirty air conditioners. There was even a patient who contracted Aspergillus pneumonia because the air conditioner was too dirty and almost died. Many people may ask, “Is dirty air conditioning that serious? The patient who almost died was over 70 years old, a rural woman from Xinghua, when he was brought in, he had a fever of 40℃ and a cough with blood, I initially judged that there was something wrong with his lungs, after CT examination, I found a moon image in his lungs, I judged that he was infected with Aspergillus, and after laboratory tests, it was proved that Aspergillus caused pneumonia. After communication, I learned that the patient is usually more frugal, installed the air conditioner also can not afford to use, sent to the hospital a month before the weather is too hot, he turned on the air conditioner for the first time after the summer, he said, just opened inside a choking smell, a careful smell, and musty smell, but he did not care, think open two days, a few days later, he began to fever, cough, go to the clinic diagnosed as pneumonia, prescribed a lot of antibiotics. But there was no sign of improvement after treatment, so he finally had to go to Beijing for medical help. I gave him medicine for more than a month, and he finally recovered. But if he had come a little later, I’m afraid his life would have been lost. There are a lot of bacteria hidden in the air conditioner. The heat sink hidden behind the air conditioner filter is the place where the air conditioner must exchange hot and cold air, and it is easy to accumulate a lot of dust and dirt. In addition, after use, the air conditioner heat sink is in a humid state for a long time, germs are easy to breed and multiply here. This hides 3 kinds of disease-causing substances First, mites: air conditioning internal adsorption of a large number of mites, mites with the air conditioning wind blowing out into the human respiratory tract. Mites are strong allergens, which can cause allergic asthma, dermatitis, rhinitis. Second, bacteria: such as Legionella and Staphylococcus aureus, which can easily cause pneumonia. Legionella pneumonia, is an infectious disease. Patients will have high fever, cough, chest tightness and other symptoms similar to upper respiratory tract diseases. Legionella bacteria like to hide in the air conditioning ventilation system, with the aerosol inhaled through the respiratory tract, children, the elderly or people with poor immunity are prone to get sick. Thirdly, fungus: inside the air conditioner is more humid and grows a lot of fungi, such as Aspergillus, which can easily lead to asthma, Aspergillus pneumonia, etc. How to solve? The air conditioner should be cleaned once a month in the summer, after the summer use the air conditioner, it should be cleaned first, after that it should be cleaned once a month in the summer. How to clean it? When cleaning, wear a mask and wash the air conditioner in three parts. First clean the air conditioning shell and exposed parts, then clean the filter, and finally clean the condenser and evaporator. If there are conditions, you can find a professional cleaner to wash at home. At the same time, the air conditioner blowing for a long time, but also pay attention to ventilation.