Dad of twins I have acquired two bins Chicco layers to get one next to each change table. Besides the fact that it's super convenient not having to go to the general trash each exchange, the Chicco trash is perfectly effective against odors. Even with thirty dirty diapers in it, not a single odor from escaping! I have 4 dogs at home and none of them is interested in these bins. The piston system is ultra-simple and best of all, the garbage works with any type of bag. I use for my share of classic bags 20 or 30 liters and it is impeccable! I can not recommend this investment.