Combined Oil Fume Purification Unit: An Overview A Combined Oil Fume Purification Unit is an advanced air treatment system designed to efficiently remove oil smoke, particulate matter, odors, and volatile organic compounds (VOCs) generated during cooking or industrial processes. This integrated system combines multiple purification technologies to ensure high removal efficiency, compliance with environmental regulations, and improved indoor and outdoor air quality. Key Components and Working Principle 1. Mechanical Filtration (Pre-treatment Stage) - The first stage involves coarse filtration using metal mesh or baffle filters to capture large oil droplets and solid particles. This helps reduce the load on downstream purification components. 2. Electrostatic Precipitation (ESP) - The ESP module ionizes oil fumes, causing charged particles to adhere to oppositely charged collector plates. This effectively removes fine oil mist and smoke particles (PM2.5 and PM10) with high efficiency (typically >90%). 3. Activated Carbon Adsorption - For odor and VOC removal, an activated carbon filter is integrated to absorb gaseous pollutants, including cooking odors and harmful organic compounds. 4. UV Photocatalytic Oxidation (Optional) - Some systems include UV-C light and a TiO₂ catalyst to break down residual VOCs and bacteria into harmless CO₂ and H₂O through photocatalytic oxidation. 5. High-Efficiency Particulate Air (HEPA) Filtration (Optional) - In applications requiring ultra-clean air, a HEPA filter can be added to capture sub-micron particles. Advantages - High Efficiency: Multi-stage purification ensures >95% removal of oil fumes and particulates. - Low Maintenance: Electrostatic plates are washable, reducing long-term operational costs. - Energy Saving: Optimized airflow design minimizes energy consumption. - Environmentally Friendly: Reduces emissions and complies with strict air quality standards. Applications - Commercial Kitchens (restaurants, hotels, canteens) - Food Processing Plants - Industrial Workshops with oil mist generation Conclusion The Combined Oil Fume Purification Unit is a robust, multi-technology solution for effective air pollution control. By integrating mechanical, electrostatic, and chemical purification methods, it ensures cleaner air while meeting regulatory requirements. Its modular design allows customization based on specific emission challenges, making it a versatile choice for various industries.