Masks have various uses, including:

1. Medical purposes (surgical, dental, hospital)
2. Preventing disease transmission (COVID-19, flu, etc.)
3. Personal protection (pollution, allergens, germs)
4. Occupational safety (construction, manufacturing, healthcare)
5. Cosplay and costuming
6. Theater and performance art
7. Fashion and beauty (skincare, face masks)
8. Sports and fitness (dust, wind, cold weather)
9. Military and tactical use
10. Cultural and traditional practices (e.g., Venetian Carnival)

Masks serve various purposes, from protection and hygiene to creative expression and cultural significance.