W型亚高效空气过滤器 W type and efficient air filter 特点Features ●使用寿命长 ●大风量、阻力低、容尘量大 ●适用于大风量空调通风系统的中级过滤 ●Long service life ●Large volume, low resistance and large amount of dust ●For large volume air conditioning and ventilation system of the intermediate filtration 构成材料及运行条件 Materials and operating conditions ●框材：塑胶外框 ●分隔物：热熔胶 ●External frane：Plastic box ●Space: glue ●密封物：聚胺脂胶 ●滤料：玻纤滤纸或聚酯纤维（PP）