空气净化器性能试验方法的探讨

Exploration of Methods for Measuring Performance of Room Air Cleaners

目的 探讨能够正确地反映出室内空气净化器性能的指标及其试验方法。方法 采用“洁净空气量”作为室内空气净化器净化能力的指标 ,方法的可靠性用相关系数和洁净空气量的标准偏差来评估。同时还对风量、噪声、寿命和净化效率等性能指标进行了探讨。结果 空气净化器去除二氧化硫、二氧化氮、硫化氢、甲醛和苯有害气体及香烟烟雾的试验 ,浓度的自然对数 ln Ct与时间 t之间呈显著相关 ,相关系数 r≥ 0 .98;洁净空气量的标准偏差 (置信概率 95 % )小于10 %。结论 洁净空气量是一项涉及到空气净化器产品使用的重要性能并能够反映出其净化能力的性能指标。本试验方法适用于现有的各种空气净化技术的空气净化器 ,为比较和评价不同品牌的空气净化器提供了科学依据。

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