Nowadays, that the importance of environmental conservation is emphasized gradually, we considered that leave the clean environments to our descendants as worthy of the best, and established DooSon to practice the worth. On the first step, we have carried out the continuous research of professor shin se-hee’s research team in the Faculty of Engineering for chemistry&bleaching ability, and have launched the detergent basically composed of the Nano new material. We, all the officers and employees of DooSon will work harder in the R&D for the clean environments which considered as the best worth of DooSon, and promise to make the best effort to enable people safely and healthily to use materials and household items needed in people’s real life and to minimize worriesabout environmental conservation. Hoping your unstinting encouragement and support, we will never make DooSon lose its original intention.