How often should an integrated cooking fume purifier be cleaned?

The interval depends on cooking style and daily operating hours, with heavy-oil kitchens requiring more frequent service; the hood, filters, electrostatic cells and oil collectors need separate maintenance. Keep fixed cleaning records to demonstrate during inspections that the facility is operating properly. 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.