Second Lung / Air Purifier concept

The human lung is the core of the design, symbolizing the second lungs of the human.
This purifier combines the biomimetic - gill structure,
When the dirty air enters the water through the gill shaped hole in the base,
The dirt in the air is left in the water.
And the clean air is discharged from the upper exhaust hole.

A glowing bubble ball in the water is like a human alveoli.
The dirtier the water is, the weaker the sphere's light is.
To remind users to remember to change water regularly,
The shape of the tree is copied on the shape,
I hope this cleaner is like a tree.
Become the lungs of the earth and provide clean air.