Evaporative cool-mist humidifiers use a fan to blow air through a wet wick; the air cools as it picks up moisture from the wick. Periodically, you’ll need to replace a filter or wick ...

In T3’s Dyson Purifier Humidify+Cool Formaldehyde review, I put this air purifier, humidifier and fan hybrid to the test to see if it lived up to the hype… and the hefty price tag. The Dyson ...