The Dyson Pure Cool™ purifying tower fan. The only purifying fan to clean a whole family room properly. Floor-standing purification. To purify a whole family room properly, the Dyson Pure Cool™ purifying fan goes beyond standard test conditions,¹ by also automatically sensing particles and gases, capturing 99.97% of ultrafine particles, and projecting and circulating purified air using Air Multiplier™ technology.²  Only the Dyson purifying fan is designed and tested to do all of this.