PM2.5 PTFE Air Monitoring Membrane Filter PM2.5 PTFE air monitoring membrane filters are designed for PM2.5 air monitoring. These filters are produced from high-purity hydrophobic Polytetrafluoroethylene (PTFE) according to 40 CFR Appendix-L to Part 50 Reference Method for the Determination of Fine Particulate Matter as PM2.5 in the Atmosphere. The pore size is 2 µm and the diameter is 46.2 mm. Each filter has chemically resistant polypropylene support rings which have sequentially numbered.
PVC Air Monitoring Membrane FilterPVC Membrane Filters are used to analysis of metals, silica, and dust in air monitoring. Moisture absorption in PVC Air Monitoring Filters is minimal, making them an excellent choice for gravimetric analysis.