Bests & Worsts Reviews from Amazon

So far this 4” fan is working like a champ in my 2x2 tent. I have it on nearly the lowest setting of the dial and it’s still pulling a decent amount of air through a 4” carbon filter. The noise level isn’t much over my 6” fan already running at the bottom of the tent, but that is likely because I’m on such a low power setting. Setup was a no brainer - an arrow points what way the air flow is, attach a 4” duct to each side, plug in power cord, connect the dial cord and adjust dial to desired air flow amount. 2 cons: 1) the connector socket for the dial cord had a moment or 2 of not working which required some wiggling of the cord until it started working. This was worrying to me because after extended use, wonder if the problem will worsen to the point of no functionality which would mean the entire fan would not operate since it requires the dial to be plugged in and working. Not a problem yet, more of a worry 2) the price is more than most other 4” fans and I’m not 100% sold the build quality warrants the price. Those 2 things said, no other complaints and am pretty happy with the fan so far. I would recommend it.