Lab Fume Extractor, Chemical Resistance. Model: JH-EA006 This model of polypropylene fume extractor is particularly popular among our customers, with high cost performance, luxurious appearance and excellent craftmanship. Joint: high density PP material, can rotate 360 degrees to adjust the direction, easy disassembly, reorganization and cleaning. Joint and seal ring: high density rubber which is not easy to aging. Joint …