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. See more

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. See more

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. See more

PolytetraFluoroEthylene (PTFE)

High quality, chemically resistant filters suitable for aggressive environments. Suitable for highly sensitive, interference free determinations. Low tare weight means gravimetric stability and suitable for use with lower sample levels. See more


These filters have a smooth glass-like surface with precise pore size and distribution for specific filtration and separation. Available in a range of pore sizes. They are optically transparent and non-staining which means they are ideal for sample observations. See more


Quartz filters are heat treated for improved purity allowing trace level analysis. They are heat resistant and suitable for use in stacks or for diesel emissions and are acid resistant.. They have a high flow rate. Binder and additive free. See more


Made from high purity silver, these filters can be cleaned and re-used. They have a smooth surface for particle capture and easy observation. They are available in different pore sizes. See more