4 Inch Air Carbon Filter Smelliness Control with Australia Virgin Charcoal, Odor Removal Carbon Filter for Grow Tent, Inline Fan, Hydroponics, Pre-Filter Included, Insulated Flange 4" x 11"

I use this in the winter to purify and deodorize the house in the winter. The air can feel pretty stale after being stuck inside all winter. I just connect this directly to my blower and run it in whatever room needs it. Truly feel like it cut down on our sickness and made the air feel light and fresh! Throw a dryer sheet on the output side and it smells like spring all winter.

So far seems good. I don’t even need to use ducking with this. I have it connected directly to the in-line fan and this just sits right on top of the tent. My set up is so small and this is such lightweight. It works great. It doesn’t prevent airflow issues. It doesn’t stop the suction from the exhaust fan. The degree of pressure that comes out is the same. It’s just filtered which is ideal for gardening and I was surprised that the function for how inexpensive this was I definitely recommend it.

I was extremely surprised how strong the fan was being that it was built in and a lot smaller than the other 4-in fan that I purchased. With that being said it is about twice as strong as the other setup that I have and if I would have known that to begin with then I would have just purchased these from the beginning. With that being said I highly recommend them and they are very efficient and simple to use. And it also you can use it for intake or exhaust. Just flip it around and that will either breathe in or breathe out the airflow. It's a little bit louder than my other device but that's okay because the event fan is traveling a distance and also with curvature so I believe that's what's making a whistling noise. The carbon filter reduces the smell so it works very good! The only issue is I only have one of them , not four! LOL

Great for front room,I use for 60days with filter cover,then toss cover and use 60 more than depose.

been using for about a year no problems. one time plug got “ frosted” wiped it off.. perfect!

Works great. I'm very happy. Easy to install.

This worked perfect rite out of the box and into the tent! MELONFARM FOR THE WIN! Brought temps down in my veg and clone side of the tent perfectly has a prefilter on it just haven't put it on as of yet. For the fan it self it works great has a great adjustment knob that you can change the speed of the fan to suit your needs. On full blast it is just a touch loud but it is manageable to deal with. all in all this is well worth the money! by the way this one is good for a 2x2 or 3x3 at max. hope this helps anyone in the fence about buying one. i know im getting the larger 6in for sure when i need a new filter on the other side of my tent! :)

We bought a whole new set up on Prime Day in July and purchased this as an extra filter to have on hand when that one was ready to be replaced. Put this one on a couple days before Christmas because the other one had reduced air flow after 6 months of use. Big mistake. This thing absolutely does not scrub the air at all. We had odor in the room it was used in and mildly even in the hallway and stairwell. We couldn't get it to go away. Never had an issue before. It's the new filter. Useless garbage. And past the return window because I bought it on sale on Prime day. Never again will I try an on sale off brand. It didn't save me any money at all.

De momento funciona bien, lo ocupe para una máquina de ventilación de láser.