The natto powder provides not only clean water but
also business opportunities for local people. Locally
employed people sell the powder and water at low prices.
Right in front of their potential customers, they
demonstrate how to purify dirty water, show the water
quality, and then sell both the powder and water. They
enjoy much better lives with the steady income. When
they go around their neighborhoods, they are thanked
again and again by their customers. They say, "I'm really
happy because I can now cook with clean water," or "I can
give my children safe water to drink."
The natto powder makes a difference to the lives of
many people in the world. It seems to have stuck in their
minds and spread an ever-widening circle of smiles.