I have a big fan in the window to help cool my PCs at night. Unfortunately, because it covers about half an open window. Light-seeking insects have a tendency to get themselves eaten by it, and I'm in direct line of fire for the results. 
Anyway, does anyone have any suggestions for keeping the insects out of the fan (I don't mind them flying around the light, but I'd rather not have bits of dead ones shot at me). Something like the mosquito mesh used in hotter climates might work, but it doesn't appear to be readily available here.
Please, sensible suggestions - mustard, fire, and orbital nuclear installations will not fix this problem.

Anyway, does anyone have any suggestions for keeping the insects out of the fan (I don't mind them flying around the light, but I'd rather not have bits of dead ones shot at me). Something like the mosquito mesh used in hotter climates might work, but it doesn't appear to be readily available here.
Please, sensible suggestions - mustard, fire, and orbital nuclear installations will not fix this problem.