Material seems thin compared to other filters
I have both “3D” and regular masks that need filters.  These are designed specifically for the 3D masks, so they’re larger than the PM2.5 filters (see my photo for comparison) and shaped differently.  I did not have any problem simply cutting the top and bottom “points” off of these so that they’d fit into the regular masks.  I did not both to clip the sides as they didn’t hang out that far.  So the size was not an issue for me.<br /><br />My issue was the thinness of the material.  At first, I couldn’t even figure out if I was supposed to peel them each apart…or use 2-3 at a time.  Compared to my PM2.5 filters these are a lot thinner.  If I have to use 2-3 to get the same thickness, then the price isn’t worth it.
Rating: 3 stars