When the motor starts running, impellers will rotate and touche water surface, it will press air into water and therefore increase some oxygen in water.
The most importance is working impellers can make sufficient water splash and strong water current. Large amount of splash will take air into water and enrich obviously dissolved oxygen in water. Meantime, water waves and current will eliminate harmful substances like ammounia, nitrite, hydrogen sulfide, etc out of water and finally clean water.
All brand new materials produced components to make sure our customers receive high quality items. It can be used both on freshwater and seawater.