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They don't make 'em like that any more: Dyson Pure Cool-Me personal air purifier
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The Cool-Me produces a gentle flow of cooling air at head-and-shoulders level, largely stripped of the pollen and particulates that make the spring months so trying. Like its other fans, all of which are eye-wateringly expensive, Dyson describes the Cool-Me as ‘bladeless’, although that isn’t really the case – rather, the air-moving elements are concealed in the centre of the unit. There might be some mileage in trying to blast the accumulated contaminants ‘backwards’ out of the filter using an air compressor, although I’ve heard mixed reports about the effectiveness of this method.
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