Multi layer film and smart seal lid blocks all odours film contains anti bacterial ingredient that kills 99 of germs offering you great protection and peace of mind each refill cassette can dispose of up to 180 nappies42 nappy disposal bin comes with one pre loaded cassette bin holds up to 18 nappies at one time42 saving you numerous trips to the outside bin but is small enough to be located in a nursery cupboard or in a discreet location in the bathroom great as a hygienic bin e