| AIR FLOW - SOUND PRESSURE ROOM (Lp10A) *) | ||||
| EXC Size | Duct size (Nominal) | 25 dB(A) cfm | 30 dB(A) cfm | 35 dB(A) cfm |
| 100 | 4 | 49 | 61 | 74 |
| 125 | 5 | 74 | 87 | 106 |
| 160 | 6 | 123 | 148 | 180 |
| 200 | 8 | 150 | 172 | 195 |
| *) Lp10A = Sound pressure incl. A-filter with 4 dB room attenuation and 108 sq ft room absorption area. Table data apply to fully open position for the cone. | ||||
