13Sound DataSound DataSound Pressure LevelModel Speed 1/1 Octave A-weighted Sound Pressure Level (dB, ref 20μPa) Overall(dBA)NoiseCriteria125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHzFTN10P/QSTurbo 32 36 37 35 31 24 10 39 34High 31 35 36 34 30 22 9 38 33Med 27 31 32 28 23 14 6 33 26Low 24 26 27 22 15 7 7 27 21Quiet 23 24 25 20 13 6 5 25 19FTN15P/QSTurbo 36 38 38 37 34 26 14 41 36High 34 37 38 36 33 25 13 40 35Med 31 33 34 30 26 17 11 35 29Low 30 28 29 24 19 11 10 29 23Quiet 29 27 28 23 18 11 10 28 22FTN20P/QSTurbo 39 40 40 40 37 30 17 44 39High 37 38 39 38 34 28 16 42 37Med 34 36 37 35 31 25 15 39 34Low 30 34 34 33 28 22 15 36 32Quiet 28 33 33 31 26 21 15 35 30FTN25P/QSTurbo 42 44 44 44 42 34 22 48 44High 40 42 42 42 39 32 20 46 41Med 37 39 39 39 36 27 19 43 38Low 34 37 37 36 32 24 18 40 35Quiet 31 35 35 33 29 22 18 37 32FTN30/35PSTurbo 51 49 47 48 45 41 32 52 47High 50 48 76 47 44 39 31 51 46Med 45 46 42 42 38 32 23 46 41Low 43 43 38 39 34 27 17 42 38Quiet 41 41 35 35 29 23 15 39 34Model Measuring LocationFTN10/15/20/25P/QSMicrophone1.0m0.8mStandard : JIS C 9612FTN30/35PSMicrophone1.0m1.0mStandard : JIS B 8615