VOC is usually used as a solvent in petrochemical, printing, electronics, medicine and other industries and it easily volatilizes into the atmosphere. In order to ensure the high
efficiency of exhaust gas purification and ensure that the emissions meet the national emission standards VOC treatment is necessary before discharge. Fans play an important role in VOC treatment process, including adsorption fan, desorption fan, RTO fan, RCO fan and so on.