Wolaid Ultramist Mesh Nebulizer With Microporous Direct Atomization Technology utilizes microporous direct atomization technology that sprays liquid medication into aerosol/vapor form and delivers it directly to the patient for inhalation. Wolaid Ultramist Mesh Nebulizer has three atomization modes: strong, medium and weak. You can choose the modes by pressing on/off button. Wolaid mesh nebulizer features LED light indicator where light turns yellow when the atomizer is charging: It turns blue when it completes charging and is ready to atomize: it turns green and red alternately when it is automatic cleaning. The device can be used for about 80 minutes after full charged. For automatic cleaning press the on/off button for 5 seconds to start automatic cleaning. It has built in lithium battery. For reasons of hygiene, it is imperative that the nebulizer and accessories are cleaned and disinfected after every use. If the therapy requires that various different medicines be inhaled in succession, ensure that the medicine cup module is rinsed after every use. Wolaid Ultramist Mesh Nebulizer benefits both adult and pediatric patients who suffer from asthma, Chronic Obstructive Pulmonary Disease (COPD), emphysema and chronic bronchitis, or other respiratory diseases that are characterized by obstruction to air flow or/and patients who are on and off ventilation or other positive pressure breathing assistance. Wolaid Ultramist Mesh Nebulizer help dispense medication into consistent particle sizes that can be easily and comfortably inhaled thus effectively relieving the breathing troubles.