
How to add a pocket insert for filters for homemade cloth masks. You can find the original
'At Your Side: Cloth Mask Tutorial' here.
Disclaimer: It is important to note that cloth face masks have not been proven to provide effective protection against the spread of viruses. For more information,
visit the CDC website.

Supplies listed above plus dimensions.

For the back pieces, press over top 1/4" then another 1/4" and top stitch down. Baste stitch your preferred straps in the corners of exterior.

Place one of the back pieces right sides together with the exterior and sew (1/4" seam allowance).
Add the other side which should overlap the other back piece about 1" or so total. Stitch that side down.

Clip corners and flip right side out through the insert/pocket. Top stitch if you'd like the bottom and top edges.

From the back, fold the center pleat first making sure the insert seam is flat. My pleats are usually 1/4" or so but you can make sure they're visually even before stitching. Stitch the center pleats first.

Add the other folds, clip, and top stitch sides down (1/4" seam allowance).

Wow, there ya go. Very simple to add once you get the hang of it. Use your preferred filter material to place inside the pocket.
Again, it is important to note that cloth face masks have not been proven to provide effective protection against the spread of viruses. For more information,
visit the CDC website. Thank you.