Look at pee pads that include a layer of charcoal (in some cases marketed as "activated carbon" or "activated charcoal"), which is great at absorbing smells. Bulldogology High quality Pet Coaching Pads Blend quite a few levels of material designed to take in liquids and pull them into the center https://dog-pee-pads-subscription24578.answerblogs.com/32894955/helping-the-others-realize-the-advantages-of-pee-pads-singapore-review