I live on 16 floor, also 有蚊, I bought the mosquito-net in "$10 Shop" (have different sizes fit for window and door) to cover my baby's bed room's door and window, so he can sleep sweetly now !
The mosquito-net can put off easily for washing, too.
It is a cheap and good choice.
luibb,
Thanks for your information. Actually I'm now living on 26/F and still have mosquitos. I though it is near to the roof. Anyway, about the mosquito-net, it sounds very good. How do you put it on the windows and doors. Do you stick it on the edges of the windows?
Yes, each pack of the mosquito-net has some photo or instruction to show you sticking it on the edges of the windows/doors. It will provide sufficient magic tape for you to stick it on to the edges of the window / door. You should measure the size of your window / door of the room and choose a suitable size of the mosquito-net.