Filter Media

Glass Fibre Filters (GFA)
These low cost filters are commonly referred to as depth filters. They are ideal for general gravimetric air sampling and analysis. Suitable when no other analysis than weighing is required. Binder and additive free. Available unweighed and pre-weighed.
Mixed Cellulose Ester (MCE)
Developed from a mixture of cellulose acetate and cellulose nitrate, MCE filters are suitable for air monitoring where further analysis other than gravimetric is required. They are available in a range of pore sizes. They are also available in gridded versions for fibre counting.
Poly Vinyl Chloride (PVC)
High quality filters for measuring dust, silica and chromium. They have a low tare weight so suitable for lower sample levels and have gravimetric stability. Low ash levels means interference free silica determinations.
PolytetraFluoroEthylene (PTFE)