The angelcare nappy disposal system is a convenient and hygienic way of disposing of dirty nappies. featuring air-seal technology designed to keep bad smells at bay, this simple-to-use system makes a happier, more fragrant home. 3 refill cassettes are included with the nappy disposal system, which is normally enough for up to 3 months of usage. important: the angelcare nappy disposal system (uk) is only compatible with the angelcare refill cassettes purchased in the uk or ireland.