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Research tagged "ffu"

Noise in Cleanrooms Served by Fan-Filter Units: Design Considerations

This paper is concerned with noise conditions in cleanrooms served by fan-filter units (FFUs), primarily of higher order clean class (ISO Class 1 through 5), although the concepts discussed also apply to rooms with higher particle counts (ISO Class 6 and higher). The need for frequent air changes to achieve the cleanliness goal is often […]...
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Noise and Vibration Characteristics of Cleanroom Fan-Filter Units

Fan-filter units are an increasingly popular alternative to packaged air handlers and fan-tower recirculation air systems. They are used in mini-environments and general cleanrooms, especially in retrofit cleanrooms with limited height. This paper presents noise and vibration data measured on 8 fan-filter units. It also presents measurement methods and performance criteria for fan-filter units. Colin […]...
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