I have a 7 month old shiba inu and a 11 week old shiba inu. I have only one room with carpet and they love it! They chew it, pull it, tug it, it has been a constant battle. I researched spray for those times I am not in the room to stop them and THIS IS THE STUFF!! I give them their warning no, and give them one of their hunderd toys to chew on, when that feels me I pick them up say No and spray (I keep them away from the initial spray to protect their eyes) I would say 3 or less sprays and they stay away from that area effortlessly! I was actually shocked at how well this repelled their carpet massacre! Highly recommend!