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Clean / Precision Air Conditioning / Local Air Conditioning

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Class of Cleanliness factor

Class of Cleanliness factor is also known as Cleanliness factor class which is a gradation in numerical form representing the degree of cleanliness of the conditioned air. For example, [Class 100] that is frequently used for representing the class of cleanliness factor corresponds to the FED-STD-209D cleanliness standards of America. [Class 100] represents the upper value of 0.5μm dia suspended particle in a volume corresponding to 1 cubic feet. i.e., in case the upper limit of number of 0.5μm dia particles present in target space is 1, then the class value [Class1] and in case of upper value being 10000, the class value is [Class 10000].

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