The bottle is made of food grade abs, tritan and high borosilicate glass. There is ceramic filter in the bottom filled with our patent hydrogen ceramic ball. The capacity is 300ml. It can produce hydrogen water, orp water, improve ph about 8.5-9.0, release mineral and smaller water molecule. Rnit is no need electricity and 100 degree boiling water is ok, the hotter water will have better hydrogen content.