ask their company about this. The purifiers on the market are generally like this. For high-altitude purifiers, galvanized sheet materials and plate-type electric field cores, the general price is 1.4 yuan/air volume. Without tax

honeycomb electric field core, the general price is in 1.7 yuan/air volume.

generally, Jiangsu, Zhejiang, Shanghai and Guangdong, do better, and the price should be higher than 1.2 yuan/air volume on this basis.

Generally speaking, the northern market, such as Shandong, Hebei, Beijing, etc., you should be careful, there are more parallel imports. It is not recommended that you buy it.