New Friedrich air purifiers combine intelligent auto-adjusting operation with reliable air cleaning. These models feature onboard air quality sensors that work in unison with an auto-adjusting fan speed system. In true "set it and forget it" fashion, they will automatically adjust the fan speed to the most appropriate level of cleaning based on the air quality of your space. Friedrich air purifiers also include multi-stage HEPA filtration that's able to filter out common airborne allergens, odors, VOCs, germs, and viruses. Plus, you'll appreciate futuristic and modern styling and easy LED controls. Creating cleaner, healthier indoor air has never been simpler than with a Friedrich air purifier!