Performance evaluation index of air cleaners—Discussion on several problems about air cleaners (1)

There are three main operating conditions of air cleaners, including test condition, indoor part-cycling condition and indoor self-cycling condition. The analysis results indicate that the clean air delivery rate (CADR), as a common evaluation index of air cleaners, can not accurately reflect the cleaning performance under the three operating conditions which causes some confusions. Discusses the relationship between three operating conditions of air cleaners and CADR, and puts forward a new performance evaluation index—cleaning performance under energy efficiency (CPEE).