A hookah (Hindustani: हुक़्क़ा (Devanagari), حقّہ (Nastaleeq) huqqā)[1][2] or waterpipe[3] is a single or multi-stemmed (often glass-based) instrument for smoking tobacco in which the smoke is cooled and filtered by passing through water.[4] Originally from India,[1][5][6][7][8][9] hookah has gained popularity, especially in the Middle East and is gaining popularity in North America, Europe, Australia and Brazil.[2]