它由高品质ABS塑料制成，耐用、轻便且耐磨。该材料安全无毒，确保长期使用不变形、不褪色。

This diffuser is designed to fit most standard car air vents, both horizontal and vertical. The clip is adjustable and can be securely attached to vents with slats that are 1-3 mm thick. If you are unsure, measure your vent slat thickness before ordering.

不，风扇完全由汽车空调系统的气流驱动。当你打开空调时，风扇旋转并散发香味。它节能高效，无需电池或充电。

只需将其夹在空调出风口上，在内置垫片上滴几滴精油，然后打开空调即可。为保持性能，每2-3周更换一次香薰垫，并用柔软的干布清洁风扇叶片以去除灰尘。