4" Inch Inline Exhaust Fan with Remote Control, 280 CFM High Efficiency Air Flow for Bathroom, Kitchen, Grow Tent, Hydroponics, 3D Printer

I purchased the Voltset 4" exhaust fan (270 CFM) to improve ventilation for my laser wood-cutting setup, and it works great. The fan moves a lot of air efficiently, quickly clearing out smoke and fumes. It also handles high heat well, which is essential for my application.The fit was perfect for the existing opening in my Roly Automation laser diode machine, making installation straightforward. I still need to mount it for the best performance, but so far, it's been a reliable addition to my workspace. If you need a strong, durable exhaust fan for laser engraving or similar uses, this is a great choice!

This fan is very powerful. I'm using it to vent my laser cutter enclosure and it does the job wonderfully. It's very quiet and easy to install.

I did not use this for the typical use case I have seen for this product. Where most are using for plants I am using it to pull fresh air from a vent I put in a soffit then through 6 inch duct to a filter box that holds a 14x20x1 filter, then this fan, then a vent into my office. I was worried if it used IR I would not be able to control it as its on the other side of the drywall in a crawl space, however the remote works perfect.In addition to it working though walls which was a primary use case it also moves an incredible amount of air. I run it for 12+ hours at a time and I am showing no degradation after months of use which was a concern. Out of a 6x12 standard HVAC vent I am getting 12mph wind using my Pyle PMA82 Digital Anemometer. I have it pulling from a filter box so if you didnt use a filter box with a MERV 14 filter it likely would move even more air. I estimate for my office which is about 500 sqft with 9 ft ceilings I am swapping all the air in about 20 minutes. I measure CO2 in my office and it went from 1200+ to 540. I can also use it during the day when its 65ish outside to keep my office around 72 degrees which is pretty impressive as 3 walls and the ceiling are outside walls and in TN even in Feb the sun can heat things up. No need to use the AC.Very happy with the performance of this fan and the remote. I do need to figure out what frequency it uses so if something happens to the remote I can replace it. I have a flipper zero so I might see if it can see what its using.

Much quieter than the previous fan I was using and moves a lot more air too.

I use it to evacuate fumes while running my laser engraver, originally I was put off by the other reviews talking about how loud the fan is. Ultimately it's not any more loud than my laser so it's a non-issue for me. The only negative from me is that there isn't an off-on switch, otherwise I'm happy with it so far.

I have installed the fan in the attic and I am ok with its performance except it is very loud even on a low setting.If you don't like noise - you will not like the unit.

After buying a printed 4” adapter for my Xtool S1, I bought this to clear away the smoke during cutting operations. It works well at both speeds, easily directing the smoke out of the garage. I like having the remote to easily start and stop it frequently.

I have a hall bathroom with a high output showerhead and 2 boys that love taking long showers. The bathroom would turn into a steam room. Already had what I thought was a decent in-ceiling exhaust fan. The excess steam ultimately created a serious mold problem on the ceiling. After cleaning up the mold problem, I took a different approach and put this exhaust fan in my attic. The flow rate of this fan is simply awesome. Sucks out all the steam instantly. Not more mold problem in this bathroom. Highly recommend.