This Review Title is I bought this diffuser so I didn't have to take ... and the content is: I bought this diffuser so I didn't have to take my larger device while traveling.  I thought this might fit onto the hair dryers in hotel rooms but it did not fit any of the hair dryers I've encountered yet, including my own..There are other information for this review, one is This reviewer did purchase it and the other is 1 people think this review is helpful.