Dump those soiled nappies into the diaper genie pail, twist them, and close... and you'll have a babypoop-free scented nursery. The diaper refills would last to almost a month (would cost you around $5) but you need to dispose of the soiled nappies once the pail is full. Akio uses around 40 diapers a week!!! But our room isn't (that) stinky! For new parents to be out there, this is a must have!