Wells Tornado air purifier is highly effective for all around space purification with 17-degree slope ventilation. Built with Wells unique patented technology, Korea’s first ‘Tornado Suction System’ that can suction large amount of contaminated air at once from all area. •Korea’s first tornado suction system •All around purification with no blind spots •99.999% complete removal of 0.01µm (ultra) fine dust •Grade 1 energy efficiency (equivalent to 5 ticks energy rating)