First, the product introduction: The nebulizer is a device specially used to treat upper respiratory diseases, such as cold, fever, cough, phlegm, asthma, sore throat, pharyngitis, rhinitis, bronchitis, pneumonia and other diseases. The drug enters the respiratory tract and the lungs by breathing inhalation and reaches the affected part, so the atomization treatment works faster than the oral medication. And because the drug directly enters the respiratory tract, its dosage is only one-tenth of that of oral administration, which significantly reduces the side effects of the drug, which is especially important for children and the elderly. Therefore, the atomization treatment has a quick effect and high safety. Quick Details : Model Number: BOXYM-N2 Material: ABS Power Source: USB or 2 X AA alkaline batteries Applicable parts: head Nebulizer Category: Microporous Nebulizer For people: adult / kids / baby E quivalent particle size: 3.7um 25% Operating power: constant Nominal frequency: 108kHz Atomization rate : ?0.2MI/min C olor: 3.7um 25% Noise: ?50DB(A) Size: 50 x 48 x 130mm W eight: N.W 111.4g G.W.237.5g(without barrery) Features? Effective treatment ?Low residual fluid ? Low noise design ?DC Power ?Water quantity inspection ? Food and materials Applicable People?Kids? Adult? The elders? Patients