How to prevent mosquitoes in the gap of screen window

How to prevent mosquitoes in the gap of screen window;

The problem may be the way the screen window (screen door) is opened.

The right half, the left half and the screen window of the glass window can be pulled left and right on their respective three tracks, but the width of the window frame around the glass window and the screen window is increased, and the window frames of the two glass windows are closed by closing the window, so that mosquitoes cannot invade.

If you want to ventilate without being disturbed by mosquitoes, you might as well move the screen window to the right half and open the glass window in the right half instead, so that the window frame of the screen window (screen door) can cling to the window frame in the left half, and mosquitoes can't enter the room.

mesh number

The general mesh size is 18 # (18 mesh), which is about 1. 15mm, while the general size of house mosquitoes is about 2 mm ~ 4 mm If the screen door is tightly closed, the invasion of mosquitoes can be effectively prevented theoretically.