I bought this water bottle three months ago. You already stank when unpacking obnoxious to chemistry, the smell was really pungent. As with other products such odors vanish, I have the hot water bottle filled with hot water several times, in the hope that the smell dissipates. This was not the case. In the coming days I aired them, washed, brushed, treated with talcum powder, coffee, soap, etc., cooked in boiling water and then leave now airing weeks. It did not help anything. The vapors which secretes this product implant themselves in clothes and hair and irritate the respiratory system for hours. I'm not an asthmatic, allergic rhinitis only, but what comes out of this hot water bottle, is definitely not healthy. This is supported by the reaction of my airways! Buy Never! I have let myself be guided by the practical form, but the stink makes the hot water bottle just useless. As I sit rather be back on classic hot water bottles that secrete no fumes.