Sencor SHA 9400WH is an air purifier that combines an inflow filter, a carbon filter, a HEPA filter, a UV-C lamp, and a negative ion generator to clean the air in your home. With four fan speeds, you can customize the airflow to your needs, and the automatic mode will adjust the fan speed based on air quality. The UV-C lamp kills microorganisms, while the negative ion generator improves air quality by releasing negative ions into the air.