This might be a lost cause, but I’m looking for small & medium (so max 1A and max 2.4A power draw) USB fans without a battery (corded power only) which will last more than 1 to 2 seasons even at a 90% duty cycle. USB fans are a common enough item that unusually good ones may exist, but it’s really hard to find any amid the tsunami of cheap trash.
Yes I’m aware cheap DC motors don’t last, I have my reasons for needing USB powered fans, please do not suggest fans which use AC power.
Not a recommendation, but you should look for a big fan, not a small one. The bigger ones are a lot quieter, as they don’t need to spin up as fast to push the same amount of air. The tiny fans sound like jet engines, please don’t get one of those!
Alternatively, you could go with a fan that you flap with your hands, they usually fold up neatly and you don’t need to go looking for a USB outlet. Perhaps not as convenient though