Increases in environmental diseases such as allergy or atopic dermatitis caused by the increase in the pollution of the atmosphere, soil, and water, there is daily rise in the interest in well-being and health. And the need for sterilization water to maintain healthy lives and minimize effects on clothing, dishes, and human skin is increasing.

We Grentech Co., Ltd have developed sterilization water creating units and cartridges with patents in Korea, China, Japan and US for the first time in the world. And we are supplying products that transform flowing tap water into sterilization water, which sterilizes various types of harmful bacteria that threat the safety and health of human beings.

Due to the instantaneous sterilization effect, there is no need for you to wait, and there are various types of products available for your convenience.

Riazero, the compound word of Bacteria and zero, is a brand name with our business philosophy of safe and healthy life reflected.