The lavender mint scented refill for rubbermaids tcell 20 odour control system delivers a consistent level of lemony fresh fragrance for 30 45 days as the tcell 20 operates discreetly your guests will only notice the pleasant smell in the air with no beeps or moving parts to give it away the refill contains microtrans technology which neutralizes odours as opposed to covering them up ensuring that your washrooms smell clean and fresh with a degree of subtlety tcell refill lavender mint