The stretch lace is breathable, stretchable and beautiful. Inside is made of micro mesh fabric and the T-shirt filter is placed in the inner pocket.
Stretch lace
micro mesh fabric
T-shirt (filter)
Stocking slices
Sewing Thread
Needle
These measurements are for the face of an average adult, the result changes depending on the size of the face and nose.
The filter size can be 28cm or 14cm.
If sewing with zigzag stitch the fabric can be stretched.
This point is the mask differential.
Enjoy!