*** Please carefully read the notes and instructions here and on the BLOG before purchasing a mask. Homemade masks are not replacement for medical masks. Social distancing is essential even if you are wearing a mask. ***
This is a listing for 10 sheets of disposable polypropylene fabric that can be used as a filter layer in Linen Face Masks.
Although the thickness and weave vary, Polypropylene non-woven fibres are the type of fibres used in N95 and disposable medical masks.
You can also use a cloth, old shirt or fabric you have at home. Best way to see if your fabric can be a good candidate or not is to point it to light to see how much air particles it will pass through. Please note that fabrics like flannel, french terry or polar can be efficient as they let less particles pass through, however they can get really warm and difficult to breathe through.
Here is an article on homemade masks and filter types.