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100% alcohol is very volatile its get evaprated very quickly therefore we use 70% alcohol which gets less volatile and it sterilize the surface cotamination of the wiped object by dehydration.

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70% alcohol is commonly used for sterilization as it is more effective at killing bacteria and viruses compared to higher concentrations of alcohol. The 70% concentration allows for better penetration into microbial cells, leading to better disinfection. It also evaporates more slowly, providing more contact time for effective sterilization.

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Q: Why you use 70 percent alcohol to sterilize laminar airflow chamber?
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