according to the current market data, the prices of oil fume purifiers are different, some are expensive, and some are cheap. Generally speaking, there are two kinds of oil fume purifiers in the market, low-altitude and high-altitude series, and the low-altitude oil fume purifier is generally about 1 yuan per air volume, which has high purification efficiency. The price of high-altitude lampblack purifier is generally about one hair and one air volume, and the purification efficiency is low. At present, as far as the whole industry is concerned, Langxia oil fume purifier is relatively good, with high purification efficiency and stable quality, which is made by big brands.