Recommended filters for environmental analysis and controlling both air and water pollution.

• Made of 100 % borosilicate glass fibres with binders
• Extremely low content in alkali-earth metals
• Chemical stability: It keeps all its properties in contact with acid solutions (except hydrofluoric acid) and basic solutions at moderate concentrations
• Measurement of dust release in workplace and production processes and the purification of compartment air
• Stable up to 180 °C for GF 10
• High flow speed and high permeability to air
• Suitable as filter belt measuring instruments and automats for air filtration and analysis
• Separation of soot, oil mist and suspended particles