Worth it but high pitched fan sound might be off-putting
I've had this product now for 4 years and I haven't needed to replace the bulb! It still works!  Every month I also open it up and clean out the dust build up inside and outside.  The fan sound  is a tiny bit obnoxious; it has a tinny, kind of electrical, high pitch sound with a mix of the gentle whoosh of air.  It's hard to ignore it.<br /><br />I highly recommend anyone buying this to also buy a 360 degree wall plug.  This has come in handy for all 3 of time. I can rotate the proper direction and it keeps it in the wall more sturdy. It also has a surge protector.  The one I use is this: [[ASIN:B002Z7EDCC 360 Electrical 36083 1-Outlet Compact Rotating Surge Protector]]<br /><br />---------------------------<br /><br />Update 07/2020<br /><br />So I've had these since November 16, 2014 and they're still working! A lot of people mention the fan dying but none of mine have died; I have 3 of them!  It says on here to replace the UV-C bulb every 6-9 months and many people say their bulbs burned out either sooner or later. But even after all these years, not one of the UV-C bulbs I have has burned out. I ended up replacing one after 2 years because it seemed a bit dimmer than the other two but I probably could have just let it do it's job until it actually did die. I've had all 3 running 24/7 for years.  I really think the reason I haven't had problems is because of the surge protector I've used and also the fact they're pretty secure in the socket. Without the surge protector (3 prong) holding them, they tend to lean out of the socket because of their weight.  I bought them because I have 2 cats in a small apartment. I honestly can't say if they're actually effective or not. I think at this point I'm just so used to them being there that mentally I just keep them. I clean them periodically (easy to unscrew); I clean out the dust film on the inside walls and the vents.  I'm writing because I want people to know that they can indeed work and last a long time. An issue for why they don't might be the power quality in the home/apartment/sockets.
Rating: 4 stars