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