One. Are the window frames installed on the inside or outside of the glass?
1、The decision should be based on the specific window situation. If the window opens outward and is a simple, inward-opening window, the screen must be installed inside. Otherwise, it will be affected when the window is opened. Typically, you need to push the exterior window open and then close the interior screen, which effectively blocks mosquitoes while also providing ventilation and air circulation.

2. For high-rise residents, windows cannot be opened outward due to safety concerns. In this case, windows can only be opened inward. When installing window screens, the screens can be placed outside. Opening to 180 degrees will not affect the functionality and will not cause them to become permanently fixed. However, it may not be particularly convenient for cleaning.
Two. Should window screens be fixed or operable?
1、Fixed window
Fixed window, as the name suggests, consists of a frame with a mesh attached directly to the window. Compared to older types of windows, fixed windows are generally more affordable, durable, and less suitable for installation in modern buildings, but they are still widely used in homes.
2、Invisible sliding window
Invisible screen doors have been highly popular since their introduction. Their key advantage is that they can be retracted when not in use, featuring automatic retraction of the screen. Primarily used for ventilation and mosquito prevention. The frame is securely attached to the window frame, and the screen can be pulled down for use and automatically retracts into the mesh box when not in use. They save space and offer excellent sealing.
3、Magnetic-attaching window screens
This is a new, simple mosquito repellent product consisting of two parts: a magnetic strip that is attached to the frame, and the window screen itself, which consists of a mesh and a magnetic strip that holds the mesh in place. These two magnetic strips are designed to attract each other. This type of window screen is commonly referred to as a magnetic screen. Installation is simple: users can install it themselves, and they can easily replace the mesh in 15 minutes.