★自84年由中国建研院空调所和上海城建学院研制成功以来,是国内使用范围广、销量大、实践考核时间长的完善产品。★86年通过鉴定,专家鉴定意见: (一)各项技术性能指标达到设计要求,为我国亚高效过滤器增加了一个新品 ★ Since it was successfully developed by the China Institute of Building Air-Conditioning Institute and the Shanghai Urban Construction Institute in 84 years, it has been a complete product with a wide range of domestic use, large sales volume, and long practice evaluation time. ★ Appraisal of experts through appraisal in 86 years: (1) Various technical performance indicators met the design requirements and added a new product for China’s sub-high efficiency filter.