New in box ~ Dyson Pure Cool Me BP01 (Black/Nickel) Fan (still in box) + 2 new filters Retail value $499.00 plus taxes ~ Now $275. Firm. The BP01 Cool Me purifier fan is engineered to help improve your air quality. Its sealed filter combines an activated carbon and glass HEPA filter. Together, they capture gases and ultra fine particles from the air. It then uses Dyson Core Flow technology to project filtered air to cool you. Adjustable up or down air flow plus 180 degree rotate option.