The true HEPA filter traps at least 99.97% of airborne particles 0.3 microns in size, such as fine dust, pet dander, smoke particles, and pollen. The activated carbon filter helps neutralize smoke and household odors, such as cooking smells and pet odors. The nylon prefilter traps larger contaminants like dust, pet hair, lint, and more. Provides you with greater control over air filtration with the featured app. Operates quietly for uninterrupted working, cleaning, and general life activities.