Technical data Additional data Battery voltage 18.0 V Max. air speed 75 m/s Weight excl. battery 1.1 kg Max. airflow 120 m³/h Runtime Speed I : 9 min/Ah, Speed II : 5 min/Ah No-load speed 17,000 rpm Noise/vibration information Sound pressure level 82 dB(A) Sound power level 93 dB(A) Uncertainty K 3 dB The A-rated noise level of the power tool is typically as follows: Sound pressure level 82 dB(A); Sound power level 93 dB(A). Uncertainty K= 3 dB.