According to EN 61591 and EN/ IEC 60704-2-13 your appliance can achieve the following values in recirculation mode with standard recirculation kit (available as optional accessory): Speed 1: extraction rate 215 m3/h; noise level 51 dB (A) re1pW Speed 2: extraction rate 300 m3/h; noise level 61 dB (A) re1pW) Speed 3: extraction rate 445 m3/h ; noise level 69 dB (A) re1pW) Intensive Speed 1: extraction rate550 m3/h; noise level 72 dB (A) re1pW)