It's been almost a year and a half since Dyson launched its formaldehyde-busting Pure Cryptomic air purifiers, and now, the company is back with an upgrade. The new Dyson Purifier Formaldehyde models ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Welcome to Retail Therapy by Prevention! In this series, our editors provide thoughtful, honest reviews ...