搭建密封环境舱实验台，选取性能评价指标，用溶液鼓泡法发生甲醛气体，将甲醛气体以恒定浓度连续通过环境舱入口，对植物提取类甲醛净化剂的净化性能和应用效果进行评价与分析。研究结果表明，甲醛净化曲线在测试过程中呈下降趋势，变化规律符合指数函数型衰减；随着样品稀释倍数的增加，甲醛去除率、甲醛净化量和洁净空气量均呈下降趋势，但下降倍数小于稀释倍数；由于净化能力的限制，随着甲醛初始浓度的增加，甲醛去除率和洁净空气量呈先增加再减小的趋势，甲醛净化量呈持续增加趋势。

A performance evaluation index is selected,a sealed environmental chamber test bench is set up,and formaldehyde gas is generated by solution bubbling method.Formaldehyde passes continuously through the inlet of the environmental chamber at a constant concentration,the purification performance and application effect of the formaldehyde purifying agent that is extracted from plant are evaluated and analyzed.The results show that the formaldehyde purification curve shows a downward trend during the test,and the change rule accords with the exponential function type attenuation;As the dilution ratio of samples increases,the formaldehyde removal rate,the formaldehyde purification amount and the clean air delivery rate all show a downward trend,but the decline ratio is smaller than the dilution ratio.Due to the limitation of purification capacity,as the initial concentration of formaldehyde increases,the formaldehyde removal rate and the clean air delivery rate increase firstly and decrease then,while the amount of formaldehyde purification remains increasing.

李明阳(1992-),男,硕士,研究方向为空气净化,1772948347@qq.com