Here are some characteristics and uses of a four-fold hospital ward screen:

1. Privacy: Its primary use is to provide patients with privacy, especially during procedures, examinations, or when personal care is being administered.
2. Flexibility: The four panels allow for versatility in terms of how the screen is positioned, whether in a straight line, U-shape, or zig-zag configuration.
3. Mobility: The screens are often on casters or wheels, which makes them easy to move around as required.
4. Material: The panels are typically made of a material that’s easy to clean and disinfect, like vinyl, which is essential for maintaining hygiene in a medical setting.
5. Frame: The frame can be made of various materials, but metals like stainless steel or lightweight aluminum are common due to their durability and ease of cleaning.
6. Height: While most screens are of a height to ensure patient privacy when lying down or seated, there are varying heights available to cater to different needs.
7. Storage: The four-fold design allows for easy storage. When not in use, the screen can be folded up compactly.
8. Variety: Some screens might come with translucent panels to allow light to pass through while still maintaining privacy. Others might have opaque panels for complete privacy.
9. Curtains or Solid Panels: Depending on the design, some screens use curtains that can be drawn, while others use solid panels.
10. Usage Beyond Hospitals: While commonly associated with hospitals, these screens are also used in clinics, nursing homes, and other medical facilities.