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			hippyjoe1955 · 70-79, M			
		
		'So I take it you have never had an industrial masking course in your life.   I have.  One of the jokes in the course is the surgical mask.  They don't work to keep out industrial contaminants like asbestos but somehow they are good to keep out a virus?????  Really?
			
			
			
			
			
		

