A breathing mask is used for keeping harmful particles from entering the respiratory system.
Aerosols are tiny particles suspended in the air.
A breathing mask is used for keeping aerosols from entering the respiratory system.
What can be used for keeping aerosols from entering the respiratory system?
Options:
  - goggles
  - hydration
  - sweating
  - hydrogen and oxygen
  - breathing masks
  - lab coats
  - layers of fat
  - gloves