北方地区冬季出现雾霾天气成了新常态，居民开始关注和使用空气净化设备。技术总监建议，使用空气净化设备时要注意避开三个误区。
Northern winter haze weather has become a new normal, residents began to pay attention to and use air purification equipment. The Technical Director suggested that three misunderstandings should be avoided when using air purification equipment.
误区一：没有雾霾就不开
Myth 1: no haze, no open
冬季室内通风不畅，油烟、灰尘等引起的污染，有时比室外还要严重。所以在冬季没有雾霾的情况下，室内也应多用净化设备。
In winter, the indoor ventilation is not smooth, and the pollution caused by lampblack and dust is sometimes more serious than outdoor. Therefore, in the case of no haze in winter, indoor purification equipment should also be used.
误区二：只要使用就管用
Mistake 2: it works as long as it is used
在室内使用空气净化设备，首先应该尽可能减少污染源，不在室内吸烟。在空气良好的时候保持室内通风，空气污染严重时要少开窗。这种情况下使用空气净化设备才有良好的效果。如果认为室内开了净化设备，不管外面空气多糟糕，仍然频繁开关窗，净化设备不会起到好的作用。
In the indoor use of air purification equipment, first of all, we should try our best to reduce pollution sources, and do not smoke indoors. Keep indoor ventilation when the air is good, and open less windows when the air pollution is serious. In this case, the use of air purification equipment has a good effect. If you think that the indoor open purification equipment, no matter how bad the air outside, still frequently open and close the window, purification equipment will not play a good role.
误区三：不清洁更换滤网
Mistake 3: replace the filter without cleaning
空气净化设备耗材大是滤网，而且更换滤网的价格比较高。如果空气质量差，滤网的使用寿命还会降低。为了节约，不少人在滤网的更换上并不及时，甚至认为买了空气净化设备可以一劳永逸，忽略了日常的清洗和维护，往往造成室内二次污染。空气净化设备应该进行定期清洁。当打开机器发现滤网变黑，或是感觉吹出来的空气已经有异味，就得更换滤网了。
Filter screen is the major consumable of air purification equipment, and the price of replacing filter screen is relatively high. If the air quality is poor, the service life of the filter will be reduced. In order to save money, many people do not replace the filter in time, and even think that the air purification equipment can be bought once and for all, ignoring the daily cleaning and maintenance, often causing indoor secondary pollution. Air purification equipment should be cleaned regularly. When you open the machine and find that the filter screen turns black, or you feel that the blown air has a peculiar smell, you have to replace the filter screen.
