concept   surgical masks

3 commonsense assertions
Cultures (3) Indian subcontinent (1) Southeast Asian countries (1) Southern European countries (1)
# Concept Culture Statement Freq.
1 surgical masks Indian subcontinent Surgical masks are used in the Indian subcontinent during severe air pollution to filter harmful particles from the air. 1
2 surgical masks Southeast Asian countries Surgical masks are often worn in Southeast Asian countries to protect against air pollution and airborne diseases in crowded urban areas. 1
3 surgical masks Southern European countries Surgical masks are occasionally used in Southern European countries during flu seasons to prevent the spread of germs in crowded public areas. 1