Aluratek's Portable HEPA Air Purifier is a high performance quiet air purifier that filters 99.7% of dust, allergens, smoke, pet dander and odors. Equipped with a replaceable 3-layer True H13 HEPA Filter and high efficient 360-degree radial filtration design, the air purifier makes it the perfect choice to clean and freshen personal spaces, cars and office spaces in just 15 minutes. Simply plug the device into a USB port on your computer, charging station or battery charger with the included USB-C cable. Effective for small spaces and cars.