If you clean your Pet Loo according to directions and empty the waste container regularly, the smell should be minimal. However, every pet's diet and health is different, so each pet's waste is different too. If you are concerned about smell, our Pee Pods are designed to trap odors. The special powder solidifies into a gel when it comes in contact with your pet's urine, effectively trapping liquid, bacteria, and odor. The disposable pod makes cleanup easier too.