Sound level ratings: The following values were measured from an nf25, pumping water at 7 bar air pressure and fully open inlet and discharge ports. The readings were made at a distance of 1 (one) metre on the same level as the pump: Without Neo-Muff Silencer
Front | Left | Right | Behind
84.2 dB(A) | 82.9 dB(A) | 82.4 dB(A) | 80.3 dB(A)
With Neo-Muff Silencer
Front | Left | Right | Behind
77.8 dB(A) | 75.6 dB(A) | 75.3 dB(A) | 73.1 dB(A)