How long does the Puritii Water Filter last? Administrator March 23, 2020 11:28 Updated The recommended usage and time to change filters is 227 litres – or about every 3 months with daily use. Related articles How much water does each Puritii bottle hold with the filter in place? Puritii Water Bottle & Filter It is hard for me to suck water through my Puritii bottle, is this normal? Are there any side effects of Restoriix? Restoriix Comments 0 comments Please sign in to leave a comment.