This is an affordable unit, with a corona tube & an air pump, in a plastic case. The air pump can deliver 0.75 PSI of pressure, and deliver approximately 1-2 LPM of flow. This system can output 200mg/h without an air drier, and 500mg/h with an air drier.
What makes the HP-500 different?
This product comes complete with an air dryer, a built in air pump, tubing and air diffusers. It features an adjustable incremental timer with a constant ON setting, and adjustable ozone outputs.