The Scosche AFP2-SP Fresch Air is a portable HEPA Air Purifier and deodorizer that you place inside your vehicle’s cup holder or stand on any flat surface to create a comfortable healthier environment. If you suffer from sensitivity to dust pet dander or odors this is a must-have accessory. With two modes: automatic which switches on when you start your car and a manual mode that offers two fan speeds you can set it and forget it. The portable design makes it easy to move from one car to another. The 3-stage H13 HEPA filter captures 99.5% of *PM2.5 small particles and dust plus also quickly neutralizes and releases clean fresh air. Although designed for in-vehicle use its small compact size and its ability to purify an average-size vehicle in 15-20 minutes and up to 100 sq. ft of space in approximately one hour make it also great for cubicles or small offices. For best performance replace the HEPA filter every 3 to 6 months depending on use. Use the included USB-C charging cable to power the Fresche Air and you can also charge a second device using the standard USB-A port on the side panel. For use in the home or office the charging cable can be plugged into a USB home charger or your laptop‘s USB Port. NOTE: *PM2.5 are fine inhalable particles with diameters that are generally 2.5 micrometers and smaller.