Fly swatter, Doff powder (catch and shake in jar!!!) or fly spray when they aim at me!
The house is hot, so Windows AND doors are netted, BUT we need the kitchen skylight open to get a through draft from the kitchen to sitting room (years ago, even had a sparrow shoot through one day. Was a surprise going by the speed he was going and he had to go around a corner to get through the front window!)
Even mum who complains about the draft, agrees to it because it cools everything down but the last few weeks, bloody wasps are coming in and it's annoying. As soon as it's opened, they're in.
Yet in 2022, that hot summer, it was never shut and there were no wasps.