What is the difference between high-voltage and low-voltage electrostatic purifiers?

High-voltage stages help charge particles, while low-voltage collector stages capture oil mist; reliable equipment usually uses multistage fields rather than simply maximizing voltage. Frequent arcing, degraded insulation or heavy grease can trigger high-voltage protection shutdowns. 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.