I chose these bags because of Febreze. We have a dog and every time I vacuum, even if it's the second time with a new bag, there's a "dog" smell when the vacuum gets warm. I once used a vacuum cleaner bag for the whole house and then threw it away when it wasn't even half full; Such a waste. These Febreze sachets seem to mask that smell so I use the sachet at least 3 or 4 times before throwing it away.