UPDATE: added LaFactoria3D's original mask parts that this is designed to fit. It's a good design, but if you feel their updated version provides better protection I urge you to use it instead.

Replacement cap for LaFactoria3D's COVID-19 MASK

While printing mask parts for Lowell Makes I wanted to find some way to help healthcare workers relieve some stress. Making replaceable caps seems the best way to offer an adjustment; these clip right onto existing masks without interfering with function and maybe they can lighten the mood in pediatrics.

In honor of the surgical mask known as a duckbill I share my fourth model: the Duck version. It clips in place of the existing cap, is lightweight, doesn't interfere with airflow, but probably won't fit under a face shield. I printed a test of this one with the bill pointing up and supports blocked anywhere above the central connection ring (the "hollow" volume) and found the result surprisingly sturdy and lightweight. Plus it's sculpted to point downward enough that it barely obstructs the wearer's view. It's contoured more like Daffy Duck, but frankly it makes me feel more like... Howard the Duck? Duckula?

How to assemble these efficiently and what to look for in filtration materials can be found here, thanks to GiveWave Studios: https://youtu.be/9ItpExBEieY

If you find any issues with it or think of ways to improve its design, please let me know. Feel free to modify this and share it to the community.