4" Axial Exhaust Fan, 3000RPM 120mm DC12V Dual Ball Bearings Air Exhaust Fume Smoke Extractor Fan Kit for DIY Soldering, 3D Laser, Paint Booth (4" Duct Adapters, Mesh, Dimmer Included)

Made an air filtration system for my 3D printers and circulates the fumes outside. Has been working very well!

If you need a truly quiet vent fan, especially for low-moderate air volumes, this is a great choice. Yes, it's basically a computer fan with ducts to fit 4-inch vent pipe, but that's a good thing. Engineers have spent years designing the quietest possible computer fans. It's much quieter at lower speeds than the tubular in-line fans I have tried. It also has a larger fan area than the tube fans since the blades do not have to fit inside the tube, and my subjective impression is that it moves more air at lower sound levels. At higher speeds it seems about as loud as the tube fan overall - which is honestly pretty loud, but doesn't have any rattling or vibration (better bearings?)Also, the mounting brackets have nice little "ears" that make it easy to mount the fan on a wall or ceiling.Check it out if this design will work for your project.

Item looks n feels solid with quality so far. Have not tested function as of yet. I don't understand why the seller would ship this item without securing the package (box) with tape. This box was loosely closed and should have been taped closed. Fortunately it doesn't look like anything was lost in shipping.

Works well for laser etching cabinet. Do do hose too long

I have purchased 3 of these for various uses around the house. 1 for moving heat from a utility room. 1 for a storm cellar to reduce moisture and prevent mold. 1 for under the house to prevent radon gas build up. The kit is complete so you can use whatever parts you need for the installation. The are low voltage and adjustable speed for your needs. Mine are on 24/7 for many months with no issues so far.

I purchased this to attach to an enclosure for my xtool and it works great. The control allows manual adjustment of how fast the fan moves which is great and it's relatively quite. Perfectly installed with all the parts you need. Great quality !

I have two of these and I run them at least 20 hours at a time at least 5 days a week and they have great output for their size and run very reliably and relatively quiet for how much air they output! Great price point too!

My bedroom vent in travel trailer has low air flow, so I added this fan to to vent. All I did was remove vents directional cover, bought longer screws and the 4 holes in fan for screws lined up perfect for a standard celing vent in a rv. I happen to have a plug in 6 inches from vent, so looks good and having the adjustable speed knob is great. Happy with purchase and vent blows air out on full speed with force, can cool room fast now.