Bio IonicUniversal Diffuser

Fits my blow dryer does not get too hot to handles and diffuses great.

good diffuser! adjustable holes for different heat flows. very happy with this product. not sure it's worth as much as charged but definitely a good one.

Make sure to measure. For my dryer but not my daughter’s dryer. We had measured prior so we knew this was likely but it’s definitely true.

My daughter bought this on my account, bloody kids, she shows me the package and says it will help her style her hair. I look the exact thing out of the bathroom drawer and say "you mean like this thing?". In all fairness the item is good and works well, but if you have kids and are thinking about it, don't! Add Admiral Ackbar once said, "It's a trap!"

This diffuser fits my Rusk W8less hair dryer perfectly. I have been using the Conair universal diffuser for years but it continually pops of the hair dryer. The Bio Ionic fits snug and does not pop off. My hair dries faster and my curls are better than before. Highly recommend. It's a little pricey, but should last years and years. It might not travel well because it is rather large. I use a collapsible diffuser for travel, but it does not work as well as the Bio Ionic.