These pads are special because they use activated charcoal to stop bad smells and keep your home fresh. They are very strong and can hold up to 9 cups of liquid without leaking, which means one pad can often last for 2 to 3 days. Because they are leak-proof and have a top layer that kills germs, they are great for house training puppies, helping old or sick dogs, or keeping pet carriers clean during long trips.