Fibertex nonwovens with nanofiber coatings, are suitable for both surface loading pulsable cartridges and depth filtration filters in gas turbine air inlet systems. Filtration efficiencies range from Iso Coarse / MERV 10 with standard polyester nonwoven and optional hydrophopic, oleophopic and antistatic treatments, to E11 / MERV 17, with a durable nanofiber coating.

Fibertex nanofiber coatings have exceptional filtration efficiency properties, with excellent dust cake release and minimal energy required for back pulsing. Nanofiber coatings can be applied into pleatable polyester nonwovens and cellulose/polyester blends.

Filtration - Gas turbine

The nanofiber coating provides a true surface filtration, which is approximately 15 times thinner than similar efficiency ePTFE materials. The fine and highly-effective nanofiber coating is resistant to contamination from small particles and has twice the air permeability to help back-pulsing, compared to the same efficiency ePTFE layer. The end result is extended filter life and savings in energy for back-pulsing.

Fibertex depth filtration media for gas turbines have a gradient structure, comprising an initial pre-filter layer, a dust holding layer and the final nanofiber layer.


Media type Filter application Weight Thickness Efficiency rating Standard
        EN779-2012 ISO16890 Ashrae 52.2.
Cellulose/Polyester Pulsable Cartridges dry conditions 115 gsm  0.4 mm F8 ePM1 70 % MERV14
Cellulose/Polyester Pulsable Cartridges dry conditions 120 gsm  0.4 mm F9 ePM1 80 % MERV15

Fire Retardant

Pulsable Cartridges dry conditions

130 gsm

0.4 mm


ePM1 80 %

100 % Polyester Pulsable Cartridges occasional humidity 160 gsm  0.5 mm F9 ePM1 80 % MERV15
        E11   MERV17
100 % Polyester Static depth filters occasional humidity 190 gsm  0.9 mm F8 ePM1 70 % MERV14
        F9 ePM1 80 % MERV15

Possible treatment options of both 100% Polyester media are:
Antistatic, Hydrophopic/Oleophopic or Antimicrobial


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