This car air freshener effectively removes unwanted odors at the molecular level, keeping your vehicle smelling fresh for weeks. Using advanced technology, its 3 key active ingredients penetrate deeply into fabrics, carpets, and vents to break down absorbed smells like food etc. For best results, start by cleaning your car and removing any odor sources. Then turn the air conditioning and air recycle to maximum, inserting the freshener. Its long-lasting new car scent will flow throughout, leaving your interior smelling clean and inviting for up to 30 days. Backed by kinetic science, this product provides a thorough,powerful solution for eliminating pesky odors throughout your vehicle.