The air in this area is unpolluted.

The river flows unpolluted through the countryside.

The air in this area is unpollutable.

Solar energy is an unpolluting source of power.

The company is unpolluting the river by implementing eco-friendly practices.

The new technology unpollutes the air.

The new air purifier can effectively unpollute the indoor air.

She breathed unpollutedly in the fresh mountain air.