What is the principle of an electrostatic cooking fume purifier?

An electrostatic purifier first charges fume particles and then attracts them to collector plates, removing oil droplets and particles; efficiency drops as the plates become contaminated. Electrostatic equipment requires stable power, reliable grounding and periodic cleaning. Checklist: Define capacity, accuracy, materials and operating environment before requesting quotes on a uniform basis. Request specification sheets, test reports, certificates, maintenance manuals and spare-part lists. During acceptance, verify appearance, dimensions, functions, safety protection and packaging, and keep test records. Do not compare unit price alone; include customization, freight, spare parts, after-sales support and downtime risk. Keep written records of inquiries, confirmations, FAT, acceptance and warranty commitments.