Note that this method can only be cleaned to the nasal vestibule, and under the nose of the front, inaccessible sinus and upper, middle and lower plastic bottle, can twist open the opening.

• 注意的是这个方法只能清洗到鼻前庭和下鼻道的前部，不能到达鼻窦和上、中、下塑料瓶的，开口处可以拧开的。