VIVOSUNAeroZesh S6 6-inch 405 CFM Inline Duct Fan with E12 Speed Controller, Entirely Programmable PWM-Controlled EC Fan for Grow Tent Ventilation

This is used on my 80 watt co2 laser. When engraving or cutting this vent does a wonderful job. This exhaust vent is much quieter than I expected. Always use it on the highest setting so I can’t say for certain about the lower settings but this definitely works for me.

That sucker pulls really good and is very quiet too, but for some reason smells are seeping from it. I've already taped around the input and output ports, but I think I'm going to have to tape around the brackets that actually hold the motor down.**********UPDATE**********Man I done taped this thing up almost like a Mummy and it "still" spills smoke and fumes all in my shop. I'm not sure if some insulation was missing or what, but this thing does not seal worth a Flip. I mean, you shouldn't have to wrap the joints up, but I understand having to, but now that I've done that and it STILL leaks smoke and fumes, I'm just Highly Disappointed and would not be likely to recommend this unit to Anyone, not even an enemy.

Nice product

S4 unit I was sent had a remote issue out of the box. Didn’t work no matter what cable I used to attach. Wrote Vivosun customer service who offered $35 for the remote, as it would take a month to ship one. Took credit thinking I could fix issue with remote. After opening S4 unit, the cable connecting the remote to the motherboard was melted, meaning even if I did get a new remote it would never work unless I resoldered the board. Last Vivosun product I purchase from Amazon.