My Thoughts and Know-how

31 March 2020

I wanted to design and donate a face mask that satisfied these requirements:

• Low weight (under 20 grams + transparency sheet)
• Low strap tension to prevent discomfort
• Fast to print (under 30 min)
• Robust
• Easy to assemble
• Wraps around the face
• Stays more than 1" away from the nose to prevent fog and discomfort

A comfortable face mask separates my germs from other people's germs.

I believe I was able to hit those due to several design choices:

• The transparent sheet is glued to the 3D printed frame, helping with structural rigidity.
• Frontal shape of two concentric circles with evenly spaced loading bars, making the shape rigid to compression and horizontal shear.