Whenever I see any of Dyson’s fans or heaters, I just feel like they’ll end up opening a portal to something in my home. Amazon is marking down a certified refurb of Dyson’s gateway to the unknown (that will also heat and circulate air in your room) to $150, the best price we’ve seen on one of these. As with any Gold Box, though, this deal will be blown away at the end of the day.