A deterrent spray is a type of spray that is used to prevent or discourage someone or something from coming closer or attacking by emitting a strong odor or causing temporary irritation. Full definition
DIY cat deterrent spray Even if you've purchased scratching posts for your kitty, he may not always want to make full use of it. (petsmagazine.com.sg)
Make a homemade deterrent spray to apply to the furniture. (cuteness.com)
If your cat is urinating on furniture or clothing, or places you can't put a litter box, make those places less appealing to your cat by covering them with things like aluminum foil, or using deterrent sprays. (catingtonpost.com)