Water pollution and environmental problems have recently been emphasized as major social issues. Therefore, this product has been developed to provide healthy, pure water to consumers – it consists of four types of specialized high-technology filters that remove dangerous substances such as heavy metals and carcinogens, as well as bacteria, from water. What differentiate from others water purifiers is that this product uses a tank less R/O technology with auto flushing system. Since this is a under sink type water purifier, it has a LED indicator in the front so the user can recognize its status easily.