Can it mean that it is not open
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ScanSolve AI Answer
No, "ductless" does not mean that something is not open.
"Ductless" refers to the absence of ducts* (channels for air or other substances).
"Open*" refers to something being accessible, not closed off, or having an opening.
These are two different concepts. A system can be ductless and still be open, or it can be ductless and closed. For example, a ductless fume hood is open to the user for placing materials but does not use ducts to vent air.