Different types of face coverings commonly used to protect against viruses like COVID-19.
1. **Surgical masks:** These disposable masks are commonly used in healthcare settings. They provide a barrier to respiratory droplets but may not provide as tight a seal as other types of masks.
2. **Cloth masks:** Cloth masks are reusable and can be made from various materials such as cotton, polyester, or a combination of fabrics. They offer some protection against respiratory droplets and can be washed and reused.
3. **N95 respirators:** These masks are designed to filter out at least 95% of airborne particles, including small respiratory droplets containing viruses. They provide a higher level of protection than surgical masks or cloth masks but are typically reserved for healthcare workers and other high-risk individuals.
4. **KN95 masks:** Similar to N95 respirators, KN95 masks are designed to filter out at least 95% of airborne particles. They are commonly used in non-healthcare settings as an alternative to N95 respirators.
The choice of face covering depends on various factors, including the level of risk, availability, comfort, and fit. It's essential to wear a face covering properly, covering both the nose and mouth, and to follow other recommended preventive measures, such as maintaining physical distance and practicing good hand hygiene, to reduce the spread of viruses.