For two common types of oxygen diffusers used in aquaculture transportation (namely carbon stone and ceramic plate diffusers), the oxygen flow rate of them is studied.
In the test, it is found that the oxygen flow of the dry diffuser operating in the air is the largest. First open the diffuser in the air and then put it in the water. At this time, the oxygen flow is reduced, and the diffuser is immersed in water before use. Then its oxygen flow will be further reduced.