Home
Design
Teaching
Experiments

Blog

about me

Cas Johnson

Hi, I’m Cas! I make and sell stuff, parent, teach, garden, and read. I'm an Inventor, Entrepreneur, Professor, Marketer, and Technologist. You can learn more on the About page.

ComfortSafe

Face Masks

I sew upcycled fabric face masks. Made from recommended virus-particle filtering materials. Designed for comfort.

Care to Share

Home
Design
Teaching
Experiments

Let’s Connect
Get in touch for opportunities or just to say hi!

Disclaimer | Terms of Service | Privacy Policy