6 Inch (150mm) Inline Fan - 395 CFM Exhaust Duct Fan, Built-In Speed Controller, ETL Listed, Pre-Wired 6 FT Grounded Cord - For Use In Grow Tents With Carbon Filters, Fixtures, Attics

This is a great workhorse of a fan. I am using it to exhaust my laser engrave workspace. The variable speed control on the power cord is very handy. Although the variability of speed is is limited. This fan is perfect for laser engraver users. I highly recommend this fan.

Menciona 60 decibeles pero hace mucho más ruido.

So, I ordered 2 of these to boost the air flow into my daughters bedrooms. Living in a tri-level house in the south, the upstairs bedrooms can be extremely difficult to cool. After installing these into the duct work, their rooms are the coolest in the house! In fact, I have to keep them turned all the way down to keep from freezing them out! I have read several posts that mention the noise level. Here's what I found. My oldest daughter's room has rigid, metal duct work. It has excellent air flow, but the metal transmits sound very efficiently. That being said, the fan is about 8 feet from the floor register and the sound is no louder than a typical fan you would have in the bedroom. She's had up to 3 fans going in there at once to try and cool off her room, so it's a non-issue for her! My youngest has flexible duct where I replaced it several years ago and you can't hear the fan at all. Overall, I am very pleased with these units. They work as advertised, maybe even better! The noise is very tolerable and were very easy to install. My only regret is I didn't order them sooner!

Très satisfait Niveau de son très bien plus silencieux que mon air assist ou de mon imprimante 3d Il tire toute la fumée que mon laser peut faire je recommande Reste à voir avec le temps mais il est garanti 2 ans

This is the 3rd fan I have used and so far, this fan kicks butt! I installed my fan on May, 20 2018, as my outtake air flow on my 4' x 8' grow tent. Fan moves massive amounts of air and you can really fine tune the flow with the adjustable air flow. Fan has been running 24/7 for about 6 months now and runs as if its brand new still. In fact, I loved this fan so much, that I purchased another fan (Same exact fan), to use as my intake. My last intake fan was so loud and this fan is ridiculously quite compared to others. 2 days ago, I was sweeping my backyard and went over to check it because I wasn't sure it was still running, it was so quiet... no joke! Highly recommend this fan to anyone!!