Q:Will increasing air outlet speed help improve cleanliness?
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A:For the same HEPA, higher air flow speed corresponds to lower efficiency, but it helps「fast discharge」, thus the effect has positive and negative sides. However, excess air speed is likely to intensify eddy effect, therefore, unless air flow is still lower than HEPA rating, when air outlet speed is increased excessively, may lead to more harm than good. If the number of HEPA is determined by about 80% rated air flow in preliminary design, space is available for adjustment and improvement.