KATCHYDuo Indoor Insect Trap with Scent Pod - Fan Powered with UV Light - Fruit Fly Traps for Indoors - for Fruit Flies, Gnats, Mosquitoes, Moths (Black)

This review is specifically for the Katchy Duo 2 in 1 (because Amazon combines reviews for similar products but you need to know for an exact one.)For the last few years since I had moved into my apartment. Every summer (It can get over 90F and 100F here) specifically about a couple weeks into summer and carries on until it starts getting cold outside in the fall and the insects die out because of the cold. I get these annoying little Fungus Gnats, or as I call them the drunken idiot of the Gnat species since they can't seem to fly a straight line and randomly bump into everything. But they especially love to hit you in the mouth and eyes. They are worse right after a rain. I think they are coming in through small cracks under the door as I think the pine tree needles around my apart are part of the reason they are so bad here since I do not have any plants in my apartment.I deliberated for a couple of summers about buying something like this because $50 is not cheap. The first couple of summers I tried every home remedy trick I could find. From apple cider in a jar with plastic wrap, to sticky fly catchers hanging in several places one in the room with me. I even tried spraying bug killer around my apartment entrances. All of this to no avail. Nothing seemed to work. These tiny pests make you want to rage as they constantly hit your eyes and land in your drink (I literally had to stop using a cup to drink from and had to start using a sealed container.) I was always getting angry as they hit me in the face every few minutes.So this summer just a couple weeks ago as it started. I decided it's time to give this a try. I had very little expectation this would actually work for Fungus Gnats as there aren't very many people mentioning their effectiveness. And it's the only bug that seems to get into my apartment aside from the occasional fly and spider. I thought, well this is likely a waste of money but nothing else seems to work.Wow, was I wrong. It is incredibly rare that will buy something I think is expensive and assume it won't work all that well. Only to be so incredibly happy with how well it works. While yes it does not catch every single gnat right away as new ones find their way into my apartment. They don't fly around long before making their way into this bug catcher.As for how loud it is. I would say on the lowest setting it is quite than my gaming PC fan. In a totally quiet room with nothing else running you can hear it. But it's quite enough that it is easy to ignore. On the highest setting, it's only slightly louder. But still, nowhere near that of a PC fan under load. I was leaving it on automatic setting so that it was only on at night and when I am not home (blackout curtains in the room it's in). But on my days off I set it to manual and leave it on.In the picture, I am adding. You can see the sticky trap on the first night, one week later, and 2 weeks later. To think all of those gnats would be constantly hitting you in the face if they were left to fly around in your home. After using it for 2 weeks now. I can not overstate how well I like this product and how well it works. It is definitely worth the money if you have an issue with Fungus Gnats every year like I do.As for how long this product will last or how long it takes for the fan bearing to wear and become louder. Only time will tell. If you are like me and are looking for something to help get rid of these pesky rage-inducing nuisances but were having trouble finding a review that explains how well it works for this pest. Then look no further as I hope my review helps you.And no, I am not a paid reviewer, nor was I given this. I try to be frugal which is why it took so long for me to risk spending money on something like this.

Look at the many photos of how many flies and gnats are attached the sticky boards.I have two. First bought, the shorted out by water getting on the PCB board attached vertically on the side. maybe it was also the flies. Taken apart and with multimeter tried to troubleshoot and could not get it two work. So I bought a second one and kept is away from the kitchen (not happy but did not want to short it out, too.After second purchase and running awhile, I was determined to continue to try to fix the first. at least figure out the circuits and create a schematic.This time I managed to get it to work. only the fan would not adjust speed and worked only an manual. That's OK for me. I cleaned the board with 99% iso alcohol, and covered the PCB with Kapton tape and put it back into service.The one in the kitchen did not do very well katchy the flies, so I created a kind of DIY vortex with aluminum foil, see photos. It increase the brightness reflecting on the foil and works great! With the Kapton tape, I no longer have an issue shorting out the PCB boardThe second I repeatedly kept knocking off onto the floor and the upper light ring brok. It would not snap back on. Looking at the photo, I glued it back on with some heavy duty glue and taped it firmly secure until the glue dried.Now the sticky boards fill up with flies, the black one despite having an air scrubber directly above the Katchy.So the negative issues:1. get water inside you may short out the PBD board. Solution DIY fix2. In some instances the flies will fly right over and not get sucked in. Solution create a DIY vortex above the Katchy3. Repeated dropping may pop the upper part of the light ring and will not snap back on. Solution glue back on with clamps, (or tape.)4. Block the outer edges of the liguid cup, or the vinegar being acidic will get drawn down fast and get onto the PCB board. Solution tape or cover the outer holes.5. don't try to save money and make your own DIY honey sticky board. in my case it just did not work and extra sticky boards are inexpensive.Both mine have been running no-stop for over a year and they catch fruit flies, gnats and even the house flies. I am happy with them, however you may have to do some DIY modifications, (Aluminum vortex and covering the outer edges of the liquids cup if using vinegar. And if fails or breaks some DIY skills will put them back into service