A chamber sealed and half-filled with water is known as a bong. A pipe with a bowl is fixed at the end of the chamber under the level of water, another pipe leads to the chamber under the water level. Tobacco is put in the bowl, lighted and can be sucked into the mouthpiece of these bongs. Air pressure is lowered, thereby causing the air pressure to lower down. The air travels down from the bowl into the chamber to your lungs.
Bongs are available in many varieties. You can search bongs in the market according to your need and budget. Some of the bongs available are Glass Bongs, Acrylic Bongs, Bamboo Bongs, Ceramic Bongs, Metal Bongs, and Brazil Bongs.