Great for bedrooms, offices, or nurseries, the Levoit Core Mini Air Purifier With Night Light keeps your room smelling fresh without taking up space. This 3-stage system traps hair, lint, fibers, 99.97 percent of airborne particles down to 0.3 microns, and smoke particles, as well as removes household odors to keep your space smelling fresh and clean. Add fragrant essential oils to the aroma pad, cycle through 3 fan speeds with the tap of a button and set a soothing ambience with the night light. The Check Filter Indicator will let you know when it's time to check and/or replace the filter.