work principle: Electrons are emitted from cathode in high-voltage electric field, and then in the process of electrons collision with air molecules, the anions are generated in order to capture the soot particles. So the soot particles are charged. Under the electric field, those charged soot particles are absorbed by anode so as to achieve the goal of removing the fumes. Model: GESP-3000 Size(mm):770*880*880 Weight: 105 KG Airflow: 3000 m3/hour Power:700w smoke removal rate: over 95%