Nature's MACE Dog Repellent 32oz Ready-to-Use Our Technology Safely and Effectively Repels Dogs. Dog repellent that acts as a nasal irritant deterring pets Ideal outdoor use: gardens, lawns, and landscaped areas. Indoor Use: basements, cellars, and storage areas Repellent is designed to train animals to stay out of the areas Effectively repels dogs, groundhogs, skunks, cats, squirrels, raccoons, chipmunks and other nuisance animals