The thing to remember about box fans is that they're great for pushing hot air out of your home. Here's how to work that to your advantage.

Another comments: "A stunning little fan with unequivocally the best small cooling system out there it fits in the palm of your hand is lightweight and is very stylish.

As AI reignites Big Tech's push for smart glasses, here's a tech that could play a central role. xMEMS, which debuted a solid-state "fan on a chip" last year, has a new one for wearables.