MARS HYDRO 4 Inch Inline Fan and Filter, with Temperature and Humidity Controller, and 25 Feet Ducting, Exhaust Fan for Grow Tents, Hydroponics

I love this fan it is very quiet even when it is operating on a high setting

I set this up in my bathroom because My wife be eating Taco Bell and her poo smells horrible. This fan gets the smell of rancid poo out the bathroom. Thanks Mars Hydro!!

Good product

Been running for two years almost non stop. Still going!

I have trouble with the control settings,fans etc.. Still don’t know, maybe that’s on me,but hope to figure out…the instructions could be better.. this is the 6 inch fan obviously, but I had a 4 in and it only lasted just under a year and had to buy another 4” in which i hope that’s not the case in this fan. Seems like it’s operating just great as far as what i did figure out at the present time!

Works great

I've only been testing this fan/filter for a few weeks, but so far I'm very happy. It moves a ton of air in my 4x4 and the fan (which I installed inside the tent) is decently quiet when cranked up to max settings.It was very easy to assemble and install, and I have no experience with these kinds of things. I did opt to seal the ducting with aluminum foil tape in addition to the hose clamps -- the tape needs to be bought separately. That said, I don't know if that's even necessary.The smart monitor is REALLY nifty. Tons of settings to automatically adjust for different scenarios when certain conditions are met. When I thought I had a problem with the monitor (it was actually just me being dumb though) customer support responded to my question in a few hours. Really can't complain!I'll try to update a year or so down the road and let you know how well it ages. In the meantime though, I'm a happy camper..

The fan is okay, maybe a little louder than I expected but still ok.I’m giving it a 1-star because the billing was completely botched, not sure if this was Mars Hydro or Amazon, but this forced me to get a new credit card and wasted an enormous amount of time dealing with fraud claim which ended up being a false claim and having to re-do most of my auto-payments. It was initially billed the correct amount, $139.36, a couple days later I saw a pending charge for $59.73 without any vendor information which I reported as fraudulent, almost a week later I saw yet another charge for $79.63 and the next day the original $139.36 posted charge was reversed, but by then I had already received a charge credit and a new credit card.Why was the $139.36 amount for the fan split into 2 charges ($59.73 + $79.63) in multiple day transactions is beyond me, I was going to buy more accessories from Mars Hydro, but no more.