Question: before turning on air conditioning, just clean the filter net with detergent and water, why still be like this? expert dispel doubt: after air conditioning is used for a period of time, the outside cover, filter net surface has the dust that deposit and dirt, very easy to clean. But the most concentrated part of air conditioning bacteria, the radiator, is often ignored. As the core part of air conditioning cold and heat exchange, heat sink not only accumulates dirt and dust, but also breeds a large number of bacteria under the action of condensate water. Add air conditioning, usually close doors and windows, air circulation, especially hot and humid summer, germs are more likely to breed. A few days ago, the China CDC, the Shanghai CDC, the Fudan University School of Public Health, and other institutions conducted a field survey of household air conditioners in Shanghai, Beijing and Shenzhen, and found that the total bacterial count of 10% of the air conditioning radiators exceeded the standard. The total number of mold in 84% of the air-conditioned radiators was over the standard, and the highest number of bacteria detected in the air-conditioned radiators was more than 1000 times. Air conditioning in addition to the adsorption of a large number of dust, there are mites, bacteria, fungi and other pathogenic bacteria. When running, the internal air conditioning, especially the radiator of bacteria, fungi with the vent, with the respiratory tract into the human body, easily lead to dizziness and fatigue, and even suffer from cold, rhinitis, asthma and other respiratory diseases. Therefore, many air conditioning diseases are not only caused by alternate heat and cold, air conditioning pollution is also a source of disaster. How many sources of pollution are hidden in domestic air conditioners? as for the frequency of cleaning air conditioning radiators, during the spring and summer seasons, it is necessary to thoroughly clean and sterilize air conditioners before turning on the air conditions.In summer, air conditioners are frequently used and it is recommended that families with conditions be able to do so. Clean air conditioning once a month to avoid air conditioning pollution. Installation of fresh air system is urgent in addition, outdoor pollution will enter the room. There will be pollutants on the dust and radiators in the home. The general air conditioning will not remove PM2.5,. In addition to regular cleaning, the key is good ventilation in the bedroom. At this stage, the outdoor air quality in many cities is not optimistic. Installation of the fresh air system may not be delayed. Many fresh air systems now have heat exchangers that turn on central air conditioning while starting fresh air systems that not only update indoor air freshness without windows but also reduce energy consumption. When the fresh air system is in operation, the temperature of the imported outdoor air is adjusted to minimize the indoor air temperature difference of the indoor fresh air temperature. It not only can recover the loss of indoor cooling (heat), but also can effectively reduce the energy consumption of air conditioning and save more energy. What is the difference between a central air conditioner with a "fresh air function" and a central air conditioning system with a "fresh air function"? The main function of air conditioning is to adjust the temperature. Its "fresh air function" is to draw in the outdoor air through the air inlet through a rough line of filtration, cooling or heating the air to the indoor, the return air will be the indoor dirty air back is still an indoor cycle. The fresh air system passes through the fresh air unit, the fresh air pipe and the tuyere, sends the outdoor air into the indoor, then passes through the tuyere, the exhaust air pipe and the fan to discharge the indoor air outdoors. Simply put, the fresh air system is through the ventilation, the turbid indoor air will be discharged out, the outdoor fresh air will be brought in to realize the circulation of indoor and outdoor air. In summer, in the case of 24-hour closed doors and windows, the use of air conditioning and fresh air system, indoor can also be maintained in the body's comfortable temperature, and the air clean, fresh. In the premise of opening windows in order to achieve a good replacement of indoor air, indoor air system and air conditioning can be used at the same time, cooling, health! Ann