After two hours of run time the bulb burnt out
I just got the item. I ran it for about 2 hours and the bulb died out.  The fan is still working.  I just purchased 2 replacement bulbs.  I'm not giving up on the item.  I bought a Germguardian air purifier years ago and it's still working. It looks like an hour glass.  The bulb on that item burnt out after a short period of usage.  But the replacement is still working (I replaced it about 4 and a half  years ago). I believe the replacement bulbs will last a lot longer than the one that came installed in the GG 1000 I just received today.
Rating: 3 stars