1.Respiratory protection: Healthcare workers need to wear respiratory protective equipment such as masks and respirators to prevent bacteria, viruses, and other pollutants in exhaled air from entering the respiratory system, thus maintaining healthy breathing.

2.Body protection: Healthcare workers need to wear protective clothing, gloves, shoe covers, and other body protection equipment to avoid contact with infection sources and pollutants, protecting the skin and body from harm caused by pollutants.

3.Eye protection: Healthcare workers need to wear eye protection equipment such as goggles to prevent infection sources and other substances from entering the eyes, thus protecting vision.

4.Hand protection: Healthcare workers need to wear gloves to protect their hands from injury caused by infection sources and pollutants.