Our face mask is 3D printed using PLA bio-degradable filament, and standard elastic bands for looping around the ear. The mask is very sturdy and light only weighing 5g. It comes in 3 sizes, small, medium and large. Small is suitable for children, medium for average female and large for the average male.
The kitchen roll is folded in a square shape and then fits neatly into the mask.
The mask can be washed in warm soapy water, and re-used by changing the kitchen roll as often as you require.