Updated Premium SereneLife Air Purifier Hepa Filter, Hepa Air Purifier, Air Cleaner Purifier, Removes Dust, Aroma Diffuser Oil Tray, Ventilation Fan, 50 Sq. Ft. Coverage (PSLAPU20) DUAL LAYER PROTECTION: The SereneLife air purifier offers dual layer shield in the form of a built-in HEPA filter, as well as an additional carbon filter. REMOVES DUST: Make dusting a thing of the past. The best air purifier makes it easy to capture dust particles without vigorous cleaning. SIMPLE OPERATION: Simply plug in the small air purifier to reap the benefits. Ultra-quiet operation & speed adjustable air circulation makes this HEPA air purifier the best. EFFECTIVE ROOM COVERAGE: The air cleaner purifier provides powerful coverage from any room up to 50' square feet. Perfect for the home or office. The ventilation fan allows for extended air flow. AROMA OIL DIFFUSER: The air purifier filter system gives you the ability to add therapeutic oils and fragrances. Added bonus it is safe for use around children and pets.