Dyson does it all with its Siri-ready Hot+Cool Link purfier, heater, and fan at $400 (Amazon low)

Like it or not, we will officially enter the fall season in a couple of days. For many of us, this means we’re headed towards a rollercoaster of temperatures that bounce all over the place from day to day. A deal over at Amazon is here to help keep temperatures right where you want them with the Dyson HP02 Pure Hot+Cool Link...