technical description ceiling-mounted filter casing extract grille with punched cloth ➤ Dimensions • Filter of 590 x 590 exterior selection chart • Economical. • Especially designed for false ceiling. ➤ designation GFF P type G : grille F : steel F : filter casing model 38 : punched cloth ➤ application • Extract for false ceiling with filter. ➤ construction / composition • Punched cloth in galvanised steel. • Fixed grille. Pt (Pa) Lw-NR Pt (Pa) Lw-NR Pt (Pa) Lw-NR Pt (Pa) Lw-NR Pt (Pa) Lw-NR Pt (Pa) Lw-NR Sound power level without room attenuation and with filter G2. Dimensions in mm. Tests carried out in isotherm. ➤ Maintenance and changing of the filter • Individual packaging, in plastic film. ➤ specification • he ceiling-mounted extract grille will be square with punched T cloth and a filter. The changing of the filter will be done by taking down the grille. • Type GFF P 38, France Air brand. accessories R emove the two blades Then take out the filter. Change the filtre and put back the two support blades. ➤ Media Tige Ventilo G2 filter • See filtration chapter p. 872. Guide created by France Air 2010. All rights reserved.