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    Main testing instruments for the experiment. by Chao Li (145513)

    Published 2024
    “…Under corresponding experimental and simulation conditions, the particle concentration differences range from 2.0% to 12.7% for return air outlet <b><i>H</i></b> and from 12.4% to 33.2% for return air outlet <b><i>L</i></b>, and these differences gradually decrease with the air exchange rate (ACH) increases. The results show that ACH = 20 is sufficient for cleanliness requirements with return air outlet <b><i>H</i></b> when there is one person in the cleanroom, while a higher rate of ACH = 35 is needed when there are two persons. …”
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