一、机械式：机械式常见的有离心式（旋风除尘）、滤网式、隔板式等。机式械式处理技术主要应用于大型工业除尘，是工业除尘中较为主流的处理方式。

One, mechanical type: mechanical type of common centrifugal type (cyclone dust), filter type, baffle type, etc. Mechanical mechanical treatment technology is mainly used in large industrial dust removal, which is the more mainstream in industrial dust removal.

机械过滤式油烟净化器工作原理: 油烟经进风口导入，首先大颗粒油滴和一些杂质因惯性作用与防火网碰撞而被吸附过滤，使流出预处理段后的油物粒子浓度大大降低，同时预处理段具有自动沥油的特性，不堵塞，而杂质在预处理段中能被截留，访产品为早期产品，净化效率较低。

The working principle of the mechanical filtering purifier: the smoke through the air inlet into the first large particles and oil droplets and some impurities due to inertia effect and fire network collision is adsorbed and filtered, the outflow of oil particles concentration after the pretreatment period is greatly reduced, properties, and pretreatment with automatic drain oil is not blocked, and the impurities in the pretreatment stage can be interception, visit the product for the early products, the purification efficiency is low.

二、湿式：湿式主要是利用水喷淋（水帘）的方式对烟气中的油雾进行过滤的方式称为湿式。 湿式油烟净化器原理： 高压喷淋的水雾液滴与油烟尘不断碰撞，油烟尘被水滴吸附，达到净化油烟目的。该产品对大颗粒的油烟有较好的效果，对较细的烟尘效果不明显，可以作为油烟净化的前处理，并维护不方便，容易堵塞喷嘴。为早期产品，对越来越高的环保要求很难满足。

Two, wet wet: mainly using water spray (water) way to filter the flue gas in the oil mist is called wet. The principle of wet oil fume purifier: the water droplets of high pressure spray and oil smoke dust collide constantly, and the oil smoke dust is adsorbed by water droplets to purify the oil fume. This product has good effect on large particle oil fume, and has little effect on finer smoke and dust. It can be used as pretreatment for cooking fume purification, and it is inconvenient to maintain and easy to block nozzle. For early products, more and more high environmental requirements are difficult to meet.