In the ICU (Intensive Care Unit), face masks play a critical role in protecting healthcare professionals and patients from the transmission of infectious diseases. These masks, commonly known as respiratory protective devices or respirators, provide a higher level of filtration and a better seal compared to regular face masks. Here are two types of face masks commonly used in the ICU:

1. N95 Respirators: N95 respirators are a type of face mask that offers a high level of filtration efficiency. They are designed to filter out at least 95% of airborne particles, including small particles such as viruses and bacteria. N95 respirators form a tight seal around the nose and mouth, minimizing the entry of contaminated air. They are disposable and should be discarded after each use. N95 respirators are primarily used in situations where there is a high risk of airborne transmission, such as during aerosol-generating procedures or when caring for patients with respiratory infections.

2. FFP3 Masks: FFP3 masks, also known as filtering facepiece respirators, are similar to N95 respirators in terms of filtration efficiency. They provide a minimum of 99% filtration of airborne particles and are often used in healthcare settings when dealing with highly infectious diseases. FFP3 masks offer a tight facial seal and are effective in protecting against both droplet and airborne transmission. Like N95 respirators, FFP3 masks are single-use and should be disposed of after each use.