Applicable situation and cleanliness recovery time of air cleaners—Discussion on several problems about air cleaners (2)

Analyses the cleanliness recovery time of air cleaners in practical use. Discusses the applicable situation of air cleaners. Points out that the graphical determination method should be employed to calculate the cleanliness recovery time of air cleaners, and that increasing the air change rate (n) is more beneficial to the cleanliness recovery time of air cleaners than increasing total filter efficiency. Considers that the air cleaner can not take the place of the clean air conditioning system of clean rooms.