All In 1 Portable Ultrasonic Nebulization Steamer Inhaler For Face, Cold, Cough, Sinus,

Can be used with mouthpiece or mask.
Efficient nebulization, drug atomization and normal saline atomization particles are less <5 um. Silent quiet treatment, noise level as low as 25 dB. Simple one button operation and easy to use. Low power consumption. Work either by 2 AA batteries, or with supplied USB cord