This is the Omron Mesh Nebulizer NE-U22. In addition to my regular nebulizer, I carried this portable one for peace of mind when I went out. (Operation confirmed) It's very compact, palm-sized, and fits easily into a small pouch. The mesh cap, which atomizes the liquid, can be washed with water after each use and reused repeatedly if handled carefully. I believe there were other accessories when I purchased it, but I disposed of everything I didn't use, so only what's shown in the photo is included. The parts have been sterilized, but to ensure comfortable use, I will include a newly purchased mouthpiece. For detailed usage and care instructions, please refer to the Omron website. I will also include batteries so you can use it right away. If you are worried about asthma attacks, etc., you can go out with peace of mind if you carry this one. In this dry season, you can also use it with distilled water to create a fine mist and moisturize your throat ✨