Refinements needed: The light is too bright, and it needs an on-off switch...
A couple of blue lights glow BRIGHTLY to indicate, I guess, that the UV-C light is not burnt out.  I assume the the blue light is harmless, but, given the warnings about how deadly UV-C is to living things, you can't help but wonder if dangerous UV-C &#34;leakage&#34; will burn your retinas or something.  My wife wondered this, too.  &#34;If that light is so powerful, is the light coming from it safe?&#34;<br /><br />Worse, it's WAY too bright to keep on in a bedroom.  I immediately put black tape on it so I could sleep...then hid it in a box!  The fan sound is gentle white noise, not a problem.  Some people like a little white to to help with sleep.  But blue light - the color of sunlight - is not good for sleep at all.  And finally, if you want to save the 10 watts or so that I measured this unit at with a watt meter,  you must pull it out of the outlet.  No on-off switch.  Stupid.<br /><br />Does it work?  Well, it's a matter of proving a negative.  My bedroom smells clean and fresh with it, but then, it didn't smell bad without it.  I haven't gotten sick since I started using it, but then...would I be sick now if I DIDN'T use it?  Probably not.  I guess the test will come if I get a cold or the flu and use this to fight germs in my sickroom.  Again, if I recover fast, can I thank this device?  There's really no way for a non-scientist to prove if it's doing anything at all...no way for a lay person to measure germs in the air with or without.  I'm not saying it doesn't perform as advertised...I'm just saying that it's hard to determine what it accomplishes, if anything.  Just be aware that it's NOT a filter, and it removes no particles from the air.  Doesn't claim to.  So, my next purchase may involve a HEPA filter device (for allergy relief) with a built-in UV-C light (just for that extra degree of feeling like I'm doing something beneficial, even if I can't prove it).
Rating: 4 stars