Bong Aid is a proprietary blend of natural and organic preservatives. Mold and bacteria can start growing in as little as 22 hours in your bong or rig. Inhalation of mold spores can cause excessive coughing and headaches. To extend the life of your water for up to 4 weeks, start by using just one dropper (1mL) in a straight shooter or two to three drops (2-3mL) in a beaker bong.