ODOR-NOX™ S-42 is a totally unique concept in odor control. It does not cover up odors with perfume; instead, it absorbs the odors. Special active ingredient has a permanent neutralizing effect that eliminates most offensive odors in automobile interiors, homes, restaurants, kennels, hospitals, boats, etc. ODOR-NOX™ is safe for use on all surfaces. Available in quart and gallon sizes. VOC COMPLIANT.