Breathe a sigh of relief (and breathe better) with this HEPA Tabletop Air Purifier. Because the air inside a home or office does not circulate as freely and widely as it does outdoors, dust and spores are more likely to stay trapped. This Air Purifier uses a 3-stage filtration system that was designed to remove 99.97% of micro-particles, including dust, pet hair, pollen, dust mites, and odors. We’ve made the purification process easier for you by creating touch controls for low, high, auto, and a range of sleep settings. Our handy air purifier is fitted with a light indicator on top, which changes color depending on the level of pollutants in the air. This way, you can quickly and clearly know if it’s safe to breathe the air around you. Add essential oils as directed and you can use this compact, portable Purifier as an aromatherapy diffuser as well. The filter lasts for up to 2,000 hours but can easily be replaced with BLACK+DECKER® AF1 replacement filters. This unit meets CA standards for environmental safety with OZONE-free emission.