(Mosquito and insect screens..had them on all but one of my rented houses for 6yrs)
Total solution for you and your critter and mosi' needs just remember to close them...or just squrt the room 20-30mins before entering...or do as follows...
I prefer the yellow can..A: It smells better B: It seems to whack everything in the room except some of the bugs I like..
This way you can still get fresh air rather than that horrible air-con cack....