... water treatment: Ozone for drinking water treatment, sterilization effect is good, no secondary pollution, also decolonization, odor, iron, manganese, ... BOD), because of its coagulation aid effect ,it is a good measure on improving water quality. Function: 1. Sterilization and ... , absorbs smoke and fresh up the air, and leads to healthy living.DURATION: 10 minutes.PLACE: Kitchen and Corridor BENEFITS: ...