Our home decoration is Weineng brand products, and its fresh air system has an intelligent filter management system, which will automatically remind you to change the filter, which is quite user-friendly. The purification effect is also obvious. Since the fresh air system was installed, the baby's rhinitis has not been committed. In particular, with the floor heating of Weineng, the room temperature can be kept constant, and good indoor air circulation can be maintained, which is also very energy-saving. I wonder if I can give you some help.