Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Jul 3:10.1097/SCS.0000000000006723. doi: 10.1097/SCS.0000000000006723

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2020 by Mutaz B. Habal, MD

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

PMC Copyright notice

A, ABS Premium MG94 filament by Gtmax3D (Americana, São Paulo, Brazil). B, In-house printing flowchart. C, Full face shield: Printed structure, acetate display and elastic head band.