This new article is very compelling evidence about how the virus is spread, and aerosols are singled out as the main spreader, making the case for wearing a mask even more crucial. https://time.com/5883081/covid-19-transmitted-aerosols/?utm_source=facebook&utm_medium=social&utm_campaign=editorial&utm_term=ideas_covid-19&linkId=98314571&fbclid=IwAR1j455A6YrgCPb28WL7MMTOtIYaQABos99HrjSzyGH2sqxRc5DqgCa9gdk
This linked article is also instructive, and it suggests disposable filters aren't as important as actual layers of masks. Reading this has been helpful to me, as I'll continue adding layers of protection to my products. Currently my Olson masks consist of an outer layer of cotton or poly cotton, fusible interfacing, and a pocket. My newer style mentioned in my blog is actually 4 layers, even better! I'll also continue experimenting with a batting layer, but so far the added bulk has been the problem, as it makes the mask hotter during extended wear, and somewhat claustrophobic. Watch this space for updates on my progress!