Product Details: Machine size:18*18*10cm Catheter Length: 160 cm Catheter Diameter: Outer 1.2 cm, Inner 0.9 cm Medical Grade Atomization Effect Air Flow 10L/min Atomization Volume 0.2ml/min advantage: 1. There is basically no reprinting and vibration, giving you a high-quality use experience. 2. Smaller size, more convenient to carry, suitable for home, work, business trip, travel and other occasions.