Library laboratory clothing

I WENT TO the library, thinking that I would go through it to the laboratory, but I d forgotten that this was now a gambling den so foggy with smoke and liquor fumes that I could hardly get more than a few feet inside. In one comer, a swath of red cloth had been... 

Protective laboratory coats, gowns, smocks, or uniforms are to be worn while in the laboratory. This protective clothing is to be removed and left in the laboratory before leaving the laboratory for non-laboratory areas (e.g., cafeteria, library, administrative offices). All protective clothing is either disposed of in the laboratory or laundered by the institution it should never be taken home by personnel. 

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