Fluororesin in waterproof spray becomes a pyrolysis product due to the heat of tobacco as well as a heater and can cause lung injury. People should be aware that waterproof spray must not be used under these circumstances.
Keywords: heater; lung injury; waterproof spray.
© 2021 The Authors. Respirology Case Reports published by John Wiley & Sons Australia, Ltd on behalf of The Asian Pacific Society of Respirology.