There are many, which can be compared with many others. Don't choose them casually, because it is better to choose big brands for children. Pari's sinus N is good, and I think many children's mothers are praising it. This brand has a history of 100 years. It only acts as an atomizer, like the one I said, such as sinusitis. A little liquid can be atomized for a long time, which can be said to be very good.