This hand-held mesh inhaler has two modes: adult and child spray can adjust the atomization speed of the two modes to perfection. Adult mode: atomization 0.25 ml/min, child mode: atomization 0.15 ml/min. The fog is fine and soft, and can be absorbed better. It has micropore technology and upgraded atomization plates to produce fine and uniform fog. Continue to produce more and softer fog, reach the lungs, effectively relieve various respiratory symptoms, and let you breathe smoothly. It weighs only 0.2 pounds, so even children can easily carry it. At the same time, its mini-size design is easy to carry in pockets, handbags and computer bags, which can help us solve breathing problems anytime and anywhere.