Living here in California, the past few years have had long cycles of wildfire smoke that has made it very hard to breathe. I have tried a few face masks and they help, but they are not always very comfortable and they also look a little too doomsdayish.
Trust the Europeans to design and develop a fashionable alternative. These look more like neck gaiters – in fact they are neck gaiters – so you can just have them around and your neck like a scarf and then also pull them up to cover the nose.
I just ordered these and haven’t tried them yet so not sure how they live up to the expectations. Will update this post once I have some thoughts on it.