AC Infinity AXIAL 1225, Quiet Muffin Fan, 120V AC 120mm x 25mm Low Speed, UL-Certified for DIY Cooling Ventilation Exhaust Projects

Excellent air flow as you would expect. The best surprise was the sound level, or lack of! Totally silent. If you didn't feel the air moving, you would not think it was plugged in! I looked up the corresponding noise comparisons based on the listed 30db of the fan. Actually, it should be close to 0.

Bought two of these. Remarkably quiet fans, well built, ball bearing. One is used to provide gentle circulation for plant seedings. The second is used to blow air across a cutting board and away from me when cutting up onions - no more tears!

When used as an exhaust fan it moved the air from one room to another pretty efficiently. It was easy enough to set up. A couple things I would change about it though is to add a power switch on the cable and replace the long screws with shorter screws and removable rubber legs or something. It's been running for about a week continuously and not showing any signs of overheating.

I am very pleased by this product , I have ordered more since , very adaptable for many uses and preforms well .

I’ve always wanted to be able to close the cabinet doors while using my receiver. This fan allows me to exhaust the heat and bring in cooler air allowing my equipment to run cooler. I chose the quiet model and I can’t hear it with the doors closed. It came with an AC plug which I have connected to the switched outlet on the receiver.The installation steps were straight forward and would have been easier if I had been able to move the 200 pound tall cabinet that I installed it in. The fan case is metal as are the wire screens. Using the screen as a drilling template required no measuring. They recommend a hole size to match the fan case. That is 4.75” for the 4” fan. I was not going to buy a $30 hole saw for this one project so I made the hole 4” (the diameter of the blades) Packaging was excellent and I bought two so I have one for the next cabinet I build.

I bought this AC Infinity AXIAL 1225, Quiet Muffin Fan, 120V AC 120mm x 25mm Low Speed on March 28, 2019 to help cool the 3'x2'x6.5' cabinet below my 200 gallon salt water aquarium. As of today it has been quietly cooling nonstop for 2063 days with no maintenance. All while constantly being misted with salt water and sucking in hair from two long haired dogs and two cats. It just keeps going! It's still moving enough air to effectively cool the electronics, sump, and high power LED lights mounted under the aquarium. For around $20, this fan cannot be beat for CFM of air moved, it's small footprint, quiet operation, and longevity. I highly recommend this fan!For the curious: On the other end of the aquarium I'm running a AC Infinity MULTIFAN S2, Quiet 120mm USB Blower Fan with Speed Control to push all the air out. The air coming out is significantly warmer than the ambient temperature of the room. It's been just as reliable.NOBODY MAKES FANS AS GOOD AS AC INFINITY!

This fan produces a good flow of air. After some discussion, we decided to attach this one just above the CPU, on the top of the case. We experimented with it facing in or out, and the best for us is OUT. We also have the side off the case, as we just can't seem to get enough airflow otherwise. We are considering water cooling for next rig, but can't afford it yet. If I put your hand over it, I can feel the heat, so I know it's working. Also, it plugs straight in to the surge protector, so it stays "on" even after the computer (with all the other fans) is turned off.You prolly know this, but CPU's and their heat-dispersing parts can warp if overheated. This leads to more overheating and the potential destruction of the CPU. This fan is an inexpensive yet effective solution to that ever-present issue. I especially love that it continues to dispel heat after the computer is switched off. Well worth the money! I only wish I'd bought it sooner.BTW, this fan is just loud enough to hear it running when the computer is off. It is under the desk, and when the computer is running too, the fan is too quiet to hear over the other six fans that are part of the whole rig (CPU, video card, and 4 in the case). When we first got it, I kept reaching under to feel the airflow to make sure it was still on! 🤔😃We went from the computer shutting down several times a day from overheating, to it happening maybe once a month. The computer gets heavy usage from online school, graphics-heavy video games, photo and video editing and more for 12 hours + a day. Having to let it cool off so it would restart was a serious inconvenience.

I like that this fan can run directly off A/C. Installed in my Home Theater cabinet, it makes both a pulsating and steady monotone sound. Unfortunately this distracts during quieter moments in movies and TV. I am ordering the USB variable speed model to see if it helps and will probably move this one to the alarm and house wiring cabinet which has a network switch in it, since that is in a closet the noise should be more muffled. My recomendation to manufacturer would be to offer a variable speed option and then this would have been 5 stars. The included fan grills and mounting hardware were all great but the bolts were extra long and stick out about 3/4", if you are mounting on thick wood though you would probably need that vs plastic or a thin Home theater cabinent backing, maybe including several sizes could be an option. They opted for long which is certainly better then too short. Anyways 3 as Its still useful and reasonably priced but just not good for my application where I want low noise.