KOHLER K-5589-0 Purefresh Quiet-Close with Grip-Tight Bumpers Round-front Toilet Seat, White Neutralizes odors continuously for up to 6 months (replaceable carbon filter) Integrated freshener fills air with a light, subtle scent for up to 1 month (replaceable scent pack) Programmable 8-hour dual LED nightlight offers both guide and task lighting, no matter if the lid is up or down Quiet-Close seat and lid w/ Quick-Release functionality allows seat to close quietly and quickly unlatch from the toilet for easy removal and cleaning Up to 6 months of battery life (uses 2 D batteries, not included), estimated on usage and brand of batteries