New accessory for the hairdryers Bi ™ 5000, Bi ™ 5000 PLUS, Bi ™ Superleggero, Ci ™ 5000, Ci ™ 5000 PLUS. It serves to optimize the airflow, greatly reducing the noise emitted by the devices. It is applied very simply by putting it close to the rear part of the dryer; the two magnets engage automatically. It is completely made of rubber to increase noise reduction, to reduce vibration and to be indestructible to shocks. Thanks to an improved efficiency, the noise emitted drops by 50%! Work in comfort: use SILENCE PLEASE!