⭐ Brand new, unopened (opened once for inspection and photography) 【Efficient Atomization & Fine Particles】Adopting piezoelectric mesh atomization technology, it generates extremely fine mist particles of 2-5μm, reaching the airways and lungs. The atomization speed is about 0.15-0.25ml/min, and because the fine particles are sprayed evenly, it is less likely to cause coughing due to irritation and is easily absorbed. Medical device certification number: 13B2X10508000108 【120-minute Ultra-Long Operation & Lightweight, Portable】➊ Built-in 800mAh large-capacity battery, allowing for up to 120 minutes of continuous wireless use ➋ Unlike conventional compressor-type inhalers, it has a cordless design and is compact. It can be easily held even in the hands of small children. It weighs about 140g and is convenient for storage ❸ With a highly integrated structure, it can be easily disassembled with one touch, and cleaning and disinfection are also easy. 【35dB Quiet & One-Touch Operation】Easy for children to use, atomization can be started with one button. The operating noise is less than 35dB, which is very quiet, so you no longer need to worry about stress or resistance. 【Multiple Intelligent Safety Protection Technology】➊ Equipped with a smart safety protection function, it automatically stops atomization when water is insufficient, preventing dry burning. This improves durability. ➋ The contacts of the medicine cup are upgraded with gold plating, providing high corrosion resistance. It can be used for a long time even in high-humidity and high-salt environments, is rust-resistant, and the electrical connection between the main unit and the medicine bottle is more stable. ❸ The unique 15° inclined design of the medicine cup bottom structure reduces the remaining amount of medicine to less than 0.1mL, maximizing the utilization efficiency of the medicine. 【High-Quality Materials & Wide Range of Uses】Unlike the old model, the mask uses higher-quality TPU material, which is safe and comfortable to fit the face. In addition, accessories such as a child's mask, an adult mask, and a mouthpiece are included, supporting a wide range of ages. ※ Viscous liquids such as purified water and essential oils are not suitable for nebulizers. ※※※ Due to the thickness of the outer box, the outer box will be folded and included, and shipped in a Yu-Packet Plus dedicated box.