SereneLife Organic Membrane Mesh Filter - Air Purifier Reduces Dust Mites, 900 Sq. Ft. Coverage, Includes Remote Control & Power Adapter - PAIRPUR20 DUAL LAYER PROTECTION: The SereneLife air purifier offers protection in the form of nano-technology organic membrane mesh 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 air purifier the best. EFFECTIVE ROOM COVERAGE: The air cleaner purifier provides powerful coverage from any room up to 900' square feet. Perfect for the home or office. The ventilation fan allows for extended air flow. OXYGEN FILTRATION: The digital air purifier uses optimal oxygen flow filtration technology. Engineered design allows for optimum air circulation