MMCH's 3D printing team


Alison Ohringer, MS2

President of MMCH

Ernesto Weisson, MS3

Co-chair of 3D Printed PPE

Noreen Mohsin.JPG

Noreen Mohsin, MS3

Co-chair of 3D Printed PPE

Joshua Goldstein, MD

Asst. Chair of 3D Printed PPE


Our 3D-Printed PPE


We have included details about our project below to support other groups

who want to start a similar initiative



We are currently printing the 3D Verkstan Shield (North American version, 6-hole punch)



The frames we use are printed using ABS or PETG and medical-grade PET plastic is used for the front covering of the shield. A laser-cutter is used to make holes in the plastic covering for attachment to the visor. If a laser cutter is not available to you, a three-hole punch used twice, spaced one inch apart, can be used. 


Printing process

We reached out to people in our community with 3D printers (engineering companies, etc.) who volunteered to print our design and supplied them with the STL file of our face shield. We organize contact-free pick-ups and drop-offs for the frames and plastic covering that will be disinfected and assembled by volunteers prior to distribution.


Approval process

If you are making face shields for hospitals, reach out to Infection Control and offer to bring a prototype to their department and/or the Occupational Health Department. After their approval, identify a clean location where you can assemble the PPE. 


Production process

The face shields are assembled in a sterile, BSL-2 laboratory on campus, and each volunteer wears appropriate PPE when handling the materials (e.g. gloves, gown, face mask, face shield, etc). The materials are disinfected and washed prior to assembly. 

Volunteers adhere to social distancing guidelines during the assembly process and remain >6 ft apart. 


Disinfection process

In order to reduce the risk of transmitting COVID from asymptomatic individuals who might be shedding SARS-CoV-2 without realizing, we are committed to thoroughly disinfecting our face shields prior to delivery. The face shields are disinfected in a 10% bleach solution for 10 minutes, rinsed in water, and allowed to air dry, after which they are transported to the hospital in clean boxes or bags.


Reusing the face shields

If face shields are being reused, a protocol for disinfection (e.g. using disinfecting wipes available at the hospital) should be discussed with the Infection Control Department. We believe providers will be using Sani-Cloth wipes between use.



Regulations may vary depending on where you are donating your PPE, but we are happy to share information about our project with any group that is planning to start a similar initiative. Please feel free to contact us at: