The lifespan of a SodaStream carbonator can vary depending on several factors, including the frequency of use and personal preferences for carbonation levels. Generally, a standard SodaStream carbonator is designed to carbonate approximately sixty liters of water. For users who enjoy sparkling water daily, a carbonator may last about four to six weeks. However, those who use their SodaStream less frequently may find that their carbonator lasts several months. It is essential to monitor the carbonation level and note that when drinks stop being fizzy, it is an indication that the carbonator is running low on gas. For specific details on the lifespan of different models or to learn more about optimal usage, one may want to visit the SodaStream website for comprehensive information related to their products.