1.This product is made of 100% bamboo charcoal granules; uses the advanced high temperature pyrogenation technology and burning for days. It has compact structure and large surface area which has strong effects of absorption, humidity conditioning and odor-removal. 2.It has well absorption and decomposition of formaldehyde, TVOC and other harmful gas from house decoration. It can also remove ammonia, hydrothion and other gas. Purifying the air and improving the house environment. 3.This product has two-way regulation of temperature, helps to regulate a suitable room humidity. 4.This product increases the dynamic components in the air. It helps to build a healthy living space.