• Teflon Membrane for PM2.5 Air Monitoring Conforms to EPA PM2.5 reference method under the requirements for 40 CFR part 50 Appendix L Manufactured under clean room No glues or adhesives Used for PM2.5 ambient air monitoring Sequentally numbered for easy traceability
  • Protective Filter ​Cobetter protective filter can protect your sensor from liquid, prolong lifetime. Hydrophobic ePTFE membrane High flow rate Manufactured in 2300m² class clean room
  • High Throughut Glass Fiber Membrne Cobetter Glass Fiber membrane is made of hydrophobic glass fiber, it has good adsorption of particles in ambient air. The retention efficiency of 0.3μm standard particles can reach 99.99%.
  • PTFE membrane laminated onto a PET support Cobetter ePTFE protective membrane is suitable for automatic monitoring device for CO, SO2, NO2, NOx, O3, ect. It can delect liquid or spray water, big particles and dust of ambient air, in the meantime, it won’t adsorb detected gas so that can protect equipment, reduce maintain cost and assure the accuracy of result.