I have purchased at least a dozen nebulixers over the past years and including a Pari Trek and several mesh-type made in China. I now have 2 Sunset mesh nebulizers that I alternate. They are silent, compact and only slightly more expensive than the basic Chinese nebulizers with funny names. Those usually only work a short time before dying. Many cannot handle 7% saline. I love the reliable Sunset portable nebulizer. available from many medical supply houses. Here's one. https://hartmedical.org/product/sunset-portable-mesh-nebulizer.