Rabbit Air SPA-550AW is an air purifier for indoor use that helps to improve the air quality in your home. It is equipped with a BioGS HEPA filter that removes up to 99.97% of airborne allergens, dust, and other particles. The activated carbon filter helps to remove odors from cooking, pets, and other sources. The Rabbit Air SPA-550AW also has a negative ion generator that helps to reduce static electricity and improve air quality. The air quality indicator lights will let you know when the air quality in your home is good, moderate, or poor.