"Portable Car Air Purifier: Negative Ion Generator, Removes Formaldehyde, Dust, and Smoke. Freshens Air."Overview: The air filter is highly effective, eliminating up to 99. 98% of dust, pollen, pet dander, smoke, and odors, making it an ideal choice for personal air purification. It helps alleviate allergies and is suitable for use on desktops, tables, or in cars, providing a purification effect of up to 200m?? H for particulate matter Cadr. Designed with dual air inlets, the product enhances air purification efficiency, covering an area of 15 25 square