HOW BIG IS A MICRON
 
Grain of salt
=
60 micron
Paper
  
Ragweed
=
20 micron
Filters
  
 
Talcum powder
=
10 micron
  
Red blood cell
=
8 micron
    
Magnesium
=
1 micron
Masterfil
  
Carbon black
=
.6 micron
    
Tobacco smoke
=
.5 micron
    
 
 

 

 

 

 

 

 

 

 

 

 

 
   
 
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