on Jul 05, 2014:
I just made one, but I don't get the purpose of the cardboard. The netting goes on the side of the fan that blows out, so when you turn it on it gets blown into that shape anyways. I just duct taped a scrap of sheer curtain fabric to the front of a box fan and turned it on full speed. There's already tons of bugs in it. I don't know how many are mosquitos. I accidently discover when I was testing it out that it makes a decent makeshift vacuum, and does a great job of picking up cat hair...