1.Air cooling,adjustable Ozone output. 2.Special design to avoid water ... ,low working temperature and high Ozone concentration.1. Features:a. Air cooling,adjustable Ozone output.b. Special design to avoid water ... .d.Stainless steel casing. 2.ComponentsDischarge cell,stainless casing,60L air compressor,current meter,150 fan 3.Pictures for reference: