Pine Cat litter has been known to last from 2-4 weeks, however, the exact duration depends on how many cats are using it and how often it’s being cleaned. To ensure that the lifespan of the Pine Cat Litter is maximized, it’s important proper hygiene practices are followed, and waste is scooped out regularly during cleaning and litter is added as and when required. Pine has natural absorbing properties which help tackle moisture and smell, thus making it an ideal litter for cat owners.