This Review Title is Fit runs small and the content is: While this was lightweight and very helpful allowing air to pass freely through my mask, the fit was not good. Whenever I spoke it moved and shifted causing me to need to touch my mask and readjust it to keep it from falling off my face. I ended up taking it out and finishing up my workday without it because I no longer felt safe having to constantly touch my mask to readjust. Maybe for a kid with a smaller face it may fit better but for an adult the fit is too small if your needing to talk..There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.