Exhaust Fan Vtronic 6" Mixed Flow Inline Duct Fan Pre-Wired, 320 CFM Speed Controllable Ventilation Fan for Grow Tents/Hydroponics/Heating Cooling Booster

I am using for ventilation on a paint booth. 2'x4'x6.5' I have 3 sides of the booth closed off. I put a vent hole in the top of the booth and the fan inline with 6" duct. So far it works like a charm. Fan is not loud to speak of and seems to move a sufficient amount of air. I am happy with the purchase.

Nice fan. Good construction. Just installed so no data on longevity.

I am using these fans in a non-traditional way as part of a design for touring inflatables. That being said, I have some ridiculous requirements, and these fans are the best I have yet to find in the category of Low Noise (under 50db) for the strength!They are also extremely easy to install, lightweight, durable, and good looking (matters for my application).The only areas I wish could be improved are:- Speed Choices: I'd prefer an adjustable dial vs the low/high settings so more fine adjustments.- I wish they were IP67 vs IP44Despite those 2 things though, I still love these fans and will be working with Vtronic on future purchases even if they are different models to suit my needs. Their customer service has been wonderful so far and I appreciate their willingness to communicate!

I have metal exhaust fans going on 10 years strong. This one quit after 2 that is ridiculous. Do not recommend.

I use this in my shed when working in there, wall fan pulls air in this sucks it out, so I get somewhat of a cross breeze. It's quiet enough to not bother me when working in the shed. I do not use it or leave it on regularly, although I probably will if I have to use my generator when power goes out to exhaust vent the shed. Overall it's a good fan, fairly quiet, seems to be built well, and the mounting bracket was easy to mount and it's easy to take apart to clean, sometimes it gets a lot of saw dust in it, but never had a problem so far.

Plugged this into a smart switch and let it dump hot air from my media closet to the hallway. Home assistant monitors the temp and triggers at over 87 degrees. It runs for 30 minutes and turns off.

This 4 inch fan vibrates really bad. Causing it to be very loud. Twice as loud as my old fan.Unusable, waste of money.

Ordered this to replace an exhaust fan that was making some racket. The reason i picked this one was the advertised "850" CFM. Well, it was actually 850 m3/h. Which is approximately 500 CFM. The old fan was 420 CFM. So I paid 3 times as much for a fan that does just a little more than the old one. Little disappointed in the false advertisement. The way I had to mount this fan made it pretty difficult to put back together. It does seem to be well made and it is pretty quiet.