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.
三、复合式：复合式主要是用静电式油烟净化设备再组合湿式或活性碳、机械式等。 复合式油烟净化器工作原理： 油烟由风机吸入静电油烟净化器，其中部分较大的油雾滴、油污颗粒在导流板上由于机械碰撞、阻留而被捕集。当气流进入高压静电场时，在高压电场的作用下，油烟气体电离，油雾荷电，大部分得以降解炭化；少部分微小油粒在吸附电场的电场力及气流作用下向电场的正负极板运动被收集在极板上并在自身重力的作用下流到集油盘，经排油通道排出，余下的微米级油雾被电场降解成二氧化碳和水，最终排出洁净空气；同时在高压发生器的作用下，电场内空气产生臭氧，除去了烟气中大部分的气味。
Three, compound type: the compound is mainly using electrostatic fume cleaning equipment to recombine wet or active carbon, mechanical type and so on. The working principle of compound oil fume purifier is that oil fume is inhaled by electrostatic blower, and some of the larger oil droplets and oily particles are arrested on the guide plate due to mechanical collision and retention. When the airflow into the high voltage electrostatic field, in the high voltage field, smoke gas, oil mist charged, the majority is a few small role in degradation of carbonization; oil particles in electric field of electric field and flow to the adsorption of positive and negative plates moving electric field were collected at the plate and in the gravity to set down the oil pan is discharged through the oil drain passage, micron oil mist remaining field degraded into carbon dioxide and water, eventually discharged clean air; at the same time in the high pressure generator under the action of air to generate ozone field, remove most of the smell of smoke.
