1. Surgical masks: used to prevent the spread of germs and diseases in medical settings.

2. Decorative masks: used for fashion, costume, or artistic expression (e.g., Venetian, masquerade).

3. Cultural masks: represent traditional or spiritual significance (e.g., African, Native American, Japanese Noh).

4. Protective masks: used for safety in sports (e.g., hockey, football), construction, or environmental protection (e.g., dust, pollution).

5. Theatrical masks: used in performances to convey emotions or characters (e.g., comedy, tragedy).

6. Historical masks: used in ancient cultures for rituals, ceremonies, or battles (e.g., Greek, Roman).

7. Virtual masks: used online to conceal identity or represent avatars (e.g., social media, gaming)