Is it normal to smell ozone near a purifier?

A brief light smell may occur with UV or oxidation modules, but persistent irritating odors in occupied areas indicate possible problems with reaction time, exhaust or activated carbon. Follow the manual to switch off UV equipment and maintain ventilation during service. 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.