Calif_Sue said:Three layers plus a filter and canvas? 
I have enough trouble feeling like I can't get enough air through 2 layers of quilting cotton.
I hear you but .... the other masks that everyone is wearing are cute and certainly can protect others (Altho I have seen video... there is escape ). And so, I wanted protection for ME as well as others. .. I will see how tight the weave is on the canvas and give it a try.. reviewers have praised .. .. but I will still err towards the function
I used to sew gators for my patients with COPD and fibrotic dz.. very little respiratory inhalation " ommmph" and we found they liked polar fleece the best.. the gators were to WARM the air .. cold air is a shock to the bronchials and throat which can cause spasm .. but that ease of pulling air through polar fleece will be just what the virus would love if it had a brain
