Easily mounts inside vehicle. 24/7 odor and particulate reduction. Replaceable ARC cell and MERV filter. Using advanced technologies including our proprietary form of photocatalytic oxidation, active radiant catalysis (ARC®), activated oxygen (ozone) (optional), and ionization, pureAir 750 significantly reduces odors caused by bacteria, mold and mildew, as well as diminishing other odors including those for pets, cooking, and smoking. 1 year manufacturer's warranty. Purification solution for classrooms, offices, or other public spaces.