Abreathing mask is used for keeping harmful particles from entering the respiratory system, and aerosols are tiny particles suspended in the air. Given these facts, what can be used for keeping aerosols from entering the respiratory system among the following options:
- goggles
 - hydration
 - sweating
 - hydrogen and oxygen
 - breathing masks
 - lab coats
 - layers of fat
 - gloves


 

     breathing masks    