Unfortunately I can not recommend the product. Was a bad buy. The nasal douche may be better processed than others. However, the application does not get any better. The apparatus is by its bulbous shape badly in his hand, the thus fatigued faster. And unlike other manufacturers have to shower in this constantly pressing on the valve rather than simply remove your finger. This also is the application to a power-consuming matter and I have to settle between times; after which Chose then no longer works and I break annoyed from what the treatment effect is unlikely to be beneficial. Shower has wandered into the garbage, bad design, I would say, unfortunately. For example Emcur is there much better, although here the build quality and thus the durability clearly be worse. Better to invest in a "old fashioned" but proven Flask.