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Dear all,</div>
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NFF of HKUST operates over 25 years and HKUST is planning to build a new cleanroom (including class 10, 100 and 1000) which size is around 1800m2. We use a subfab approach and cleanroom build on a waffle slab structure (design with VC-C standard, with active
vibration control platform for high vibration sensitive equipment). </div>
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I know there are two arrangements for cleanroom air return</div>
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<li><span>Through the space between raised floor and waffle slab; and back to AHUs/FFU</span></li><li><span>Through subfab and back to AHUs/FFUs (cheese structure of waffle slab)</span></li></ol>
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<div>May I have your recommendation/suggestion of which types of configurations is more suitable for a research lab? And what are the pro and cons? Any network member can show/share your current structure?</div>
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<div>Your great help is highly appreciated.</div>
<div>Jeff</div>
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