Emfab – preferred filters for diesel exhaust and stack emission testing
Pure borosilicate glass microfibers reinforced with woven glass cloth and bonded with PTFE
Withstands folding for weighing and transport.
Every filter flushed with DI water to remove water-soluble residue.
Low moisture pickup eliminates lengthy desiccations.
Low air resistance.

Fiberfilm – economical filters for air monitoring applications
Pure borosilicate glass fibers with fluorocarbon coating
Unique combination of heat-resistant borosilicate glass fibers and moisture-resistant fluorocarbon (tetrafluoroethylene, TFE) coating.
Moisture variations in air or gases during air sampling will not cause chemical reactions on the filter.
Low moisture pickup eliminates lengthy desiccations.
Low air resistance.

Tissuquartz – uniquely designed for air monitoring in high temperatures and aggressive atmospheres
Binder-free pure quartz
Heat treated for reduction of trace organics and superior chemical purity.
High temperature use up to 1093 °C (2000 °F).
High flow rate and filtration efficiency.

Applications
Emfab Filters – Low air resistance for use in critical aerosol sampling tests that demand filter purity and non-hygroscopic properties such as diesel exhaust, stack emission control, and ambient air monitoring for particulate concentration.
Fiberfilm Filters – Suitable for high temperature and hot gas air monitoring applications. Heat-treated (HT) version available for reduction of trace organics.
Tissuquartz Filters – High temperature use for analysis of acidic gases and stack sampling aerosols. Ultra-pure soft water processing reduces residual ion content.