A StayPure capsule remains effective for up to six months depending on the quality of your water and can treat up to 1,000 litres. This is equivalent to 2,000 500ml bottle refills. Therefore, one small StayPure capsule can potentially prevent 2,000 plastic water bottles from entering the environment.

A StayPure capsule will effectively work in drinking water containers up to 3 litres in capacity. It is equally functional at water volumes less than 3 litres, bestowing various enhancements based on the demand from the water in which it is placed. For containers of water greater than 3 litres volume, more than one capsule is required to meet the demands of the greater volume of water.