The feature of closed style ozone generator is itself is electrode and facilitate the collection of o3 gas ,that also use for water treatment(like ozone tube, high concentration ozone module).Due to electrode is exposed in the air(like ceramic ozone plate),o3 gas is hardly to collect, so open ozone generator is normally used for small size room air purifier or items surface disinfection. Closed ozone generator can do what open‘s work, but its cost will highly that open style.

But some put the open style closed then posing enclosed generator, large amount of heat can not be distributed in time, accelerate ozone decay and ozone generator is easy to burn.