Quote:
Originally Posted by Chocaholic
Fans
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Some of doorways at high end places have those overhead blade-effect fans that create a virtual wall to the bugs.
Those look like they are not too expensive:
https://www.amazon.com/DuraSteel-Aerial-Titan-2-Erosive-Commercial/dp/B011WH11ZW/ref=sr_1_35?hvadid=77721781059424&hvbmt=bp&hvdev=c&hvqmt=p&keywords=doorway+fan&qid=1558402302&s=gateway&sr=8-35
Also for doors are those magnet curtains, but wherever there is a light source behind the bugs will always stack up on the surface to tailgate through behind a human. It has something to do with the 60mhz and attraction I think. A regular house fan beyond blowing outwards that might work.