Characteristics:

- Filter class G4 according to EN779 and ISO coarse 60% according to ISO 16890
- for filter fan / exhaust filter with a mounting cutout of 92 x 92 mm
- high performance nonwovens from elastic, break-resistant polyester fibers with thermal bonding
- progressive in structure, with layers being arranged behind each other so as to ensure that the density of the fiber layers
  increases towards the clean air side
- this optimized the defined filter performance and the dust holding capacity, resulting in longer useful lifetime for the filter   
  concerned (slow pollution and high durability)
- By high dust holding capacity, the filter mats are particularly economical
- fire behaviour: the filter mats satisfy the stringens requirements of Fire Class F1 according to DIN 53438 and are thus
  self-extinguishing

Technical information:

• - Weight, approx. ca. 300 g/m²
• - Thickness, approx. ca. 20 mm
• - Thermal stability up to 100 C°
• - Moisture-resistance (rel. hum.) up to 100 %
• - Initial arrestance 62 %
• - Examination surface 0,37 m²
• - Nominal media velocity 1 m/s
• - Initial pressure drop 22 Pa
• - Recom.final pressure drop 250 Pa
• - Dust holding capacity approx.AC fine up to 200 Pa 750 g/m²

Technical changes and errors are excepted