SPT AC-9966 is a DC motor air cleaner that can help you to improve the quality of air in your home, The device is equipped with several filters, including a HEPA filter, a VOC filter, and a pre-filter, which work together to remove harmful pollutants from the air, such as dust, pollen, pet dander, smoke, and odors. The air cleaner also has an ionizer, which can help to neutralize positively charged particles in the air, making them easier to capture by the filters.