As of Jan. 27, the Dyson Hot+Cool Gen1 HP10 Purifier is on sale for $349.99 at Dyson. That's $180 off the regular price.

Engineered to improve air quality, the Dyson Purifier Humidify+Cool Formaldehyde ... If you just want a fan, the Dyson Pure Cool TP04 is a good choice, and it’s also multi-functional like ...

Philips Ac1215/20 Air Purifier, Long Hepa Filter Life Upto 17000 Hours, Removes 99.97% Airborne Pollutants, 4-Stage Filtration With True Hepa Filter(White) The Dyson Pure Cool TP04 air purifier is ...