The child was diagnosed with allergic rhinitis, and the air index in the home is worrying. The 699 purchase, although it didn't catch up with the lowest price, was looming. The outer packaging box is a habitual and simple style of Xiaomi mobile phone. The installation and application also reflect the spiritual essence of Xiaomi mobile phone. It can be completed by very simple actual operation. In appearance, this oil fume purifier is no more. It is simple and atmospheric. It is normal to put it in your home or company office; in effect, the larger flash point is that the noise is really small, and the operating noise is completely audible, purifying the indoor air Instead, the effect is not so prominent. It was 14 before going to bed. The closed window door was opened for one night. Most of the readers did not achieve the position in the mouth. It still needs to be checked.