A real good invention.

Angelcare Refills for bins.
There's no smell in the room, it's really efficient and well sealed. The use is very easy. I never had a problem for 2 years that I use. Made me a refill approximately one month when my son was a baby, now it makes me a little more.
Price much more interesting than in store.
Received in two days despite the possibility of longer delay.
Definitely recommended.