Efficient 3-Stage Filtration System: Pre-filter True HEPA filter Activated carbon filter Purify PM 2.5, VOCs, dust, pollen, smoke, pet dander, and air pollution Five timer settings: 2H, 4H, 8H, 10H, and 12H Runs at low speed with low noise to ensure that your sleep and activities are not disturbed Fan speed can be selected accordingly Warm glow night light mode that can be turned off Filter replacement indicator light
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