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《Journal of Environment and Health》 2001-04
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Exploration of Methods for Measuring Performance of Room Air Cleaners

CHEN Lie xian, WU Ya xi Institute of Environmental Health Monitoring, Chinese Academy of Preventive Medicine, Beijing 100021  
Objective To explore the accurate indexes and testing method for assessment on the performance of room air cleaners Methods The purifying capability of a room air cleaner was represented by an index of clean air delivery rate (CADR) The reliability of the lest was assessed by the correlative coefficient and relative standard deviation of CADR The air flow rate,noise,life span,purifying efficiency and other indexes of performance were also studied Results The tests on the removal of air pollutants,such as sulfur dioxide,nitrogen dioxide,hydrogen sulfide,formaldehyed,benzen and cigarrete smoke,revealed significant correlation between the values of natural logarrthm of the pollutants concentrations and the removing time( r≥ 0 98) The relative standard deviation of CADR was less than 10% with a 95% coffidence probability Conclusion CADR concerning the main performance of air cleaner could accurately reflect the purifying capability of room air cleaners This test was suitable for the evaluation on the room air cleaners adopting various air purifying techniques existing at present,and provide scientific basis for the comparison and evaluation on different brands of air cleaners
【CateGory Index】: TM925.16
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