Auto Shut-Off: When the medicine is almost used up, our nebulizer will shut down automatically. It is also equipped with an automatic cleaning function, just remove the accessories, pour out the residue and add an appropriate amount of water, and then turn on the device to start cleaning. Refuse Noise: It& 39;s pretty quiet, virtually noiseless operation, noise level as low as 25 dB, it will not disturb others. At the same time, a quiet nebulizer will reduce children& 39;s anxiety and prevent them from feeling uncomfortable during use. Easy to Portable: Our portable nebulizer is small in size and light in weight. It is suitable for use at home or in the office, and can also be carried with you when traveling on business. It can be used with battery or USB cable, which is very convenient. Nebulizer Machine for Adults & Kids: Mesh Nebulizer for adults and kids daily use, it comes with masks for adults and kids, and a universal mouthpiece. Just remember to disinfect mask or mouthpiece after use.