Generally, the purification efficiency of low-altitude lampblack purifier is about 2,111 yuan, which is suitable for cities that only detect lampblack concentration. If it is a purifier with three testing standards, the price is relatively high; Configuration of air volume, a stove is configured according to 3111 air volume, which is too wasteful and too small to achieve good purification effect. It is recommended to consider Guangdong New Oxygen Purifier Purification Technology Co., Ltd. and Worry-Free Goose Purifier, and the factory direct sales effect is guaranteed.