I was making the folded ones also for a while. I spent yesterday learning how to make the fitted ones from a free pattern on Craftpassion.com. I'll be making this kind from now on. I loved their pattern because I had requests from family for a nose wire and a filter. I purchased aluminum nose pieces from Amazon. An this pattern the filter pocket is the entire mask so, a blue paper type filter can completely be placed inside and this one can be used for a cover only. It works so good, I have quit making them in batiks and have started to use printed quilter's cotton. Batiks are just too hard to breathe thru this type of mask.