Making Face Masks

This is all sourced from the following website: https://tianascloset.com/index.php/2020/02/06/face-mask-against-the-coronavirus-epidemic/ 

There are fairly simple instructions and pictures to guide you -  I will be ensuring there are three layers rather than two and have used Winceyette which is a lightweight napped flannel typically used for pyjamas. 

Here's a PDF of the pattern - print on A4 paper

Instructions
Cut out 4-6 pieces fabric using your chosen pattern size(100% Cotton is best as it is 'breathable').
After cutting, you will have two-three pairs of fabric.

Pick two pieces and align them right side to right side.
Stitch along the longest curved side 0.5cm from the edge.
Clip the curved edge to allow the seam to sit flat.  

Open the stitched piece, fold the seam to the left or right, and top stitch where the bulk of the seam is - this is a flat felled seam.

Repeat the above steps with the remaining pieces (one of the pairs can be stitched wrong side to wrong side and have an open seam when using three layers).
Place two of the completed pieces right side to right side, the third can be placed either way - I have chosen to place the pieces so that the print is what will be seen when wearing the mask and the white is the 'backing'.
Stitch along the long edges, leaving the short edges open.

Turn the fabric inside out through one of the openings on the short sides.
Top stitch along the long edges 3-5mm away from the edge.

There are a range of different ways to prepare the short edges to attach or insert the elastic. In the interest of keeping it simple, I'll explain two simple techniques.
One (this is the technique I will use).
Neaten the short edges with an overlocker or a zigzag stitch. 
Fold the short edge over 1.5cm and top stitch to secure - this creates a casing for the elastic.

Cut two pieces of elastic 15-18cm in length.
Use a safety pin to insert each piece of elastic through the 'casing' that has been created. Overlap the ends of the elastic and zigzag stitch to secure.

Two.
Fold the short edges over twice, to hide the raw edge - at least 1cm per fold.
Top stitch close to the inside fold - this should create a loop that allows you to easily thread a piece of elastic through whilst hiding the knot inside the fabric.

**Alternatively, cut the elastic to the desired length, overlap the two ends to form a loop, zigzag stitch closed, and insert before stitching the 'casing' closed.