This set of 4 DIY bandana masks kit is great for protecting your family during necessary outings. Set includes 4 American flag print bandanas, 8 elastic bands, and 24 brand name blue shop cloth filters. Assembles in minutes with no sewing, just fold and tuck. See instructions for details. In one study, a double layer of these brand name shop cloth was found to filter up to 93% of particulate matter down to a size of 0.3 microns, which is the size of a virus. It is recommended to change the filter every 8 hours. The bandanas are pulled back around the ears with the gentle-coated elastics, to create a seal around the face and chin. Bandanas measure approximately 18"x18". This set is great for a family of 4, or couples and individuals who will wear the mask on consecutive days and would like to clean the bandana. See our store for optional accessories like neck-hooks to avoid looping around the ears, and mask supports to keep the fabric elevated from your mouth.
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Making Masks
Fold twice isn't clear but you are the only one I found who has the inner lining.