1)Material and operation condition media: glass fiber sealant: pu two-componet / polyurethane ruber frame: aluminum/galvanized/stainless steel/plastic seperator: EVA hot melt bead efficiency: 99.99%~99.9995% 0.3μm max.temperature: 70°C max.humidity: 100% gasket: endless gasket/EVA/neoprene 2)Product features 1. It is use patent technology to ensure the fully use of V-type passage. 2.The frame is extruded and anodized aluminum. 3.Using the special seamless sealing technology,the effect is lasting for a long time,the airflow is even. 3).Design: As required by the Buyer.