Breathe better on the go with the Homedics Portable Air Purifier, featuring 3-in-1 purification that removes up to 99% of airborne particles as small as 0.3 microns. With 3 fan speeds, plus quiet operation, this purifier delivers clean air wherever you go—perfect for home, car, office, or travel. Compact and always ready to go.*Removes up to 99% of airborne particles as small as 0.3 microns from air that passes through the filter media. **Up to 8 hours of unplugged runtime on fan speed 1.